Best Protein Powder for Weight Loss: 14 Brands, 6 Criteria, Your Choice

In this article

• The Short Version
• The Problem With Most "Best Protein for Weight Loss" Articles
• Why Protein Helps Weight Loss
• Three Myths the Diet-Protein Category Runs On
• Whey vs Plant-Based: Why We Compared Both
• The Six Criteria That Actually Matter
• The 14-Brand Comparison
• Use the Criteria on Any Protein Powder

If you've ever tried to find the 'right' protein powder for weight loss, you know it's an overwhelming task. Walmart sells 315 products tagged "protein powder for weight loss." Amazon's search returns more than 1,500. Reddit threads have ranked them. Your friend Karen has strong opinions about three of them.

Most articles repeat the stuff you already know, hide their methodology, and give the top scores to the protein company that paid for the placement.

So we're going to do better. We'll explain the criteria for ranking protein powders for fat loss first. Then we'll score various proteins, including our own, against each other (and believe it or not, we actually concede where we think RISE311 loses).

Why should you believe us?

Because one of our founders, Jason Walsh, is the trainer behind so many of the A-list celebrity transformations. We're talking Jake Gyllenhaal for Road House, Pedro Pascal for Fantastic 4, and Brie Larson for Captain Marvel, not to mention celebrities like Bradley Cooper, Jennifer Aniston, Emma Stone, Matt Damon and so many more. We know what works in the real world to help you lose weight, and we want to share it with you.

Before we dive in: let's make one thing very clear. We don't 100% believe weight loss is a separate category for protein. The phrase "Diet Protein" is JUST marketing. A good protein powder will help you lose weight (if you know how to use it).

Our hope is that by the end of this article, you'll know the criteria to look for on the labels so you can decide for yourself.

The 5-Minute Version

We picked 14 brands across whey and plant-based types. Published six criteria up front, adjusted every metric to be the equivalent of a 30g serving of protein (we'll explain exactly why we chose 30g below), and ranked the brands from hard data, not editorial preference.

One important weight-loss lever that is rarely discussed is protein-per-calorie. Whey isolate powders win that lever. Plant-based proteins often have a lower ceiling because of the source material. But there is nuance within the protein-per-calorie math because there's a hidden variable: taste. If you can't drink a protein with water and need to sweeten it with banana, milk, or juice, you've added 100–200 calories. That's more than the gap between any two products on this list.

Protein-per-calorie is one of six criteria we use. The others (leucine, amino acid completeness – the right levels of amino acids so your body can use, sweetener used to avoid gut irritants, formulation cleanliness avoiding poor quality gums and testing transparency) split the field. Some "clean" brands carry Clean Label certifications with carrageenan and sucralose still in the formula (known to cause gut irritation and bloat). Some "organic" brands test 564% over Consumer Reports' lead safe-limit. One "weight loss" brand has maltodextrin (a high-GI carb) as its second ingredient (an ingredient best avoided for lose weight).

Read the criteria. Then read the brands. By the end you'll have the answers and tools you need to evaluate any protein powder you encounter next.

The Problem With Most "Best Protein for Weight Loss" Articles

Type that phrase into Google and most of what comes back is sponsored. The brand ranking #1 is usually the one paying the highest commission. The disclosure is buried in 8-point gray text at the bottom (if it's disclosed at all). How do we know? Frankly, we've been surprised on many many occasions when journalists pitch us. Tell us how much they love the product. Followed by demanding a fixed fee or commission link. The higher we give the commission, the higher they'll rank us.

As we said, we're going to do something different: explain the exact criteria that matter for choosing a protein powder for fat loss. That way you can pick the right protein for your body, not the one with the biggest ad budget.

But first, we're going to explain exactly how protein works for fat loss and the three myths we hear all the time (and why the answers matter for your fat loss journey).

Why Protein Helps Weight Loss

Protein can do some of the heavy lifting in fat loss, but not always for the reasons you might think. Here's what it actually does inside your body:

1. It silences hunger at the hormone level. Protein lowers ghrelin (the "I'm hungry" signal) and raises leptin and GLP-1 (the "I'm full" signals). A 30g protein breakfast keeps you full until lunch. A bagel or a full stack of pancakes, not so much.
2. Your body torches calories just digesting it. You burn 25-30% of protein's calories breaking it down. Carbs cost 5-10%. Fat costs 0-3%. Eat 100 calories of protein, you net around 70. The other macros don't pull this kind of weight.
3. It builds and protects muscle: your metabolic engine. Muscle burns calories 24/7, even when you're sitting down watching TV. Protein feeds muscle, and one amino acid in particular (leucine) flips the switch that tells your body to grow muscle or to hold onto it. So, in a calorie deficit, it protects the muscle you've already built. Without enough protein, you lose fat AND muscle, and end up looking softer, maybe even flabbier.
4. Blood sugar stays steady. Protein blunts the glucose spike from carbs. No spike, no crash. Without the crash, perhaps that 3pm cookie craving fades.
5. After 40, your body has to work harder. Your body gets less efficient at using protein with age (a phenomenon researchers call anabolic resistance). You need closer to 30g per meal, plus 3g of leucine to trigger muscle building, versus ~20g in your 20s.

For women in perimenopause and menopause, falling estrogen levels accelerate muscle loss. Meaning you need even more protein, not less. Your aging gut also digests protein less efficiently, which is why source and quality need to be prioritized more after 40.

Before we score anything, three myths keep coming up as we talk with our community.

Three Myths the Diet-Protein Category Runs On

Myth 1: "Low-calorie protein is best for weight loss."

Calories matter for weight loss. No argument.

Protein has 4 calories per gram. So guess what? More protein = more calories. The answer isn't fewer calories in your protein supplement. Otherwise, a protein supplement with 1g of protein would be the best possible weight loss supplement. Only 4 calories per serving.

The right metric is protein-per-calorie.

Translation: you want a supplement that's mostly protein, not padded with carbs, fat, and filler.

Not all "protein" on a label is the same purity. Whey concentrate is around 75% pure protein. Whey isolate climbs to 90%. Pea protein isolate sits around 80–85%.

So which is better for fat loss? A drink with 90-cal serving and 15g of protein or a drink with 160-cal serving and 30g of protein?

To hit 30g, you'd drink 2 servings of the first shake (180 calories) or 1 serving of the second (160 calories). The "low-calorie" option is just smaller. (Same trick as a "tall" Starbucks being the smallest size.) Low calories is the wrong measure. Protein per calories gives you the right information.

Myth 2: "Keto protein is better for fat loss."

Keto protein is low-calorie protein in a different costume. Fat loss happens in a calorie deficit, period. Any decent protein powder is already low in carbs and added sugar. The "keto" label is a marketing wrapper (see Myth 1 for why you want to instead think in terms of protein per calorie).

Myth 3: "Whey makes you gain weight."

Blaming whey for calories is like blaming the spoon for the soup.

The problem is sugar sweeteners, dietary fat enhanced or 200+ calorie formulations. Not the whey itself.

A clean whey isolate runs 110–120 calories per 25g of protein.

(The myth probably stuck because mass-gainers are usually whey-based. Mass gainers and protein powders aren't the same product.) Look at the calories, not the ingredients to judge the weight gain risk.

Whey vs Plant-Based: Why We Compared Both

A quick word on this very old and very heated debate. We've included both whey and plant-based products in our list because the answer to the questions depends on your body (not on tribal loyalty as Dave from Reddit might have you believe). Both whey and plant-based have real strengths and potential trade-offs.

Whey wins on:

• Protein-per-calorie (whey isolate is almost pure protein)
• Complete amino acid profile (all the amino acids at the right level for your body), rich in leucine
• Lighter taste and thinner texture
• Typically lower in heavy metals than plant sources

Whey loses on:

• Digestion. Roughly 1 in 2 adults struggle with it: bloating, gas, low-grade inflammation. The symptoms you don't want to describe at the office.
• Hormones and skin. Whey can spike growth-related hormones in some people, which sometimes shows up as acne.
• Antioxidants and phytonutrients — great for overall longevity and health. Whey has none. Plants have plenty.
• Environmental footprint. Dairy is not environmentally friendly.

Plant-based wins on:

• Long-term health markers (cardiovascular, longevity)
• Phytonutrients and antioxidants (whey has none of either) — which supports long-term health markers
• Often easier on the gut (no lactose, simpler peptide chain structures)
• Environmentally responsible option

Plant-based loses on:

• Most plant proteins present earthier or chalkier than whey, unless the brand has done specific flavor-system work (which means you're less likely to keep going and get all the benefits)
• Heavy metals. Plants pull from soil which can be high in heavy, so third-party testing matters more here.
• Leucine per gram. You need slightly more total protein to hit the magic muscle-building threshold.

None of these advantages and disadvantages are fixed in stone. A well-formulated plant protein can capture most of whey's strengths without the digestive cost. A well-formulated whey can include digestive enzymes to soften that cost. The key is for you to know the downsides so you can judge if the protein powder has addressed them properly.

Full disclosure: RISE311 is plant-based. We had the choice of any source, and we picked plant-based knowing the trade-offs above. Done right, we think plant threads the needle better. We think we got there. Judge for yourself in the rankings section.

The Six Criteria That Actually Matter

Most comparison articles open with the ranking, then justify it. We're flipping that. Here are the methods we will use:

First: where we quote costs, we've standardized to 30g of protein per serving. That's roughly the body's working dose for muscle recovery and growth. It's also where most people start to feel full. Rather than compare cost per serving between, say, one product with 15g of protein and another with 20g, we compare both at a standard 30g of protein.

Second: we've only used published data. If a brand doesn't publish a number (on their website, on Amazon) or we couldn't find it after many hours of digging, we record that as "doesn't publish." Why? Opacity is itself a finding. If you've found the information, please email us. We'll amend the article.

So, the 6 criteria are:

1. Protein % in a 30g standard serving

This is the strongest weight-loss lever. The whole point of supplementing protein on a diet is to deliver protein with as few calories as possible. It keeps you full so you eat less, and stops you from losing muscle (so you lose fat, the actual goal of dieting).

Math: multiply the total protein in a serving by 4 (since 1g of protein has 4 calories) and divide by the total calories in a serving.

Protein × 4 ÷ Total Calories.

Higher is better. RISE311 hits 75%. Transparent Labs hits 93%. Orgain Plant-Based hits 56%.

If a protein is good with water, these percentages are all that matter. But if your protein is unpleasant, and you need to sweeten it with banana, milk, or juice to get it down, that's another 100–200 calories. Clearly, that's more than the gap between any two products on this list (so do keep it in mind).

And the gap itself is only big at the extremes. 75% vs 93% is about 30 calories per serving. But 56% vs 93% is about 85 calories per serving. The first is more noise. The second is real when you're trying to lose weight, and every calorie matters.

2. Leucine content

Leucine is the master amino acid. It triggers your body's anabolic pathway (the technical name is mTOR), which tells your body to hold onto muscle.

In a calorie deficit, the goal is preservation, not new growth. Leucine is the lever.

You need roughly 3g of leucine per serving to trigger the pathway. Most proteins don't hit it. A lot of plant proteins especially fall short (unless the brand designed the formula for leucine specifically).

3. Amino acids at the right level (PDCAAS)

PDCAAS (Protein Digestibility-Corrected Amino Acid Score) measures protein quality on a 0 to 1.0 scale.

1.0, the highest possible score, means every essential amino acid is present at the optimal levels.

Less than 1.0 means your body can't use all of the protein when you consume it. You're limited by the lowest amino acid. This means you might eat 30 grams of protein, but only utilize 24 grams. The other 6 grams wait around like they're stuck in a doctor's office, waiting for more amino acids to come along.

A lot of brands don't publish this, nor do they publish the amino acid table so you can calculate the PDCAAS yourself. Hard to trust a protein is complete if you don't see the proof.

4. Sweetener and sugar load

This is about avoiding calories, or artificial sweeteners we know (from research) aren't good for your gut.

Added sugar (cane, agave, brown rice syrup) means added calories: not great when you're trying to lose weight.

Artificial sweeteners (sucralose and acesulfame potassium especially) have both been linked to gut microbiome disruption in research (fancy words for bloat and discomfort).

Carb fillers like maltodextrin (a high-GI starch) shouldn't be near anything marketed for weight loss. They're cheap, and they add calories with no benefit.

The cleanest options for sweeteners are Reb-M (Reb-M is one component of stevia, under 0.1% of the stevia leaf, which gives the cleanest taste profile of any stevia extract), followed a bit behind by monk fruit (as it has a lot of licorice notes in the taste — obviously not a problem if you like licorice).

5. Clean formulation

This is "what's in the powder besides the protein." The list of issues is long, and you'll never see all of it unless brands publish complete sourcing e.g. Soy lecithin processed using best practices is less of a problem than soy lecithin processed with hexane.

What we see as red flags:

• Carrageenan: gut inflammation links.
• Problematic gums (cellulose gum, xanthan gum, carboxymethylcellulose, guar): bind water in the gut, linked to bloating.
• Soy lecithin: typically processed with hexane (which is actually a nervous system depressant).
• Maltodextrin and other starch fillers (blood sugar spikes making you feel hungrier and potential digestive issues).
• Soybean oil (inflammation risks)
• Artificial flavors and colors (gut and digestion issues)

Gums and lecithins with cleaner supply chains, or those that are known to be prebiotic (like sunflower lecithin and acacia gum), are actually of benefit to your health.

Also look for proteins that add the real flavor ingredient itself. This has a significant health and flavor advantage (e.g. real vanilla bean for vanilla, real cocoa for chocolate, real strawberry powder for strawberries…you get the idea).

6. Testing and sourcing transparency

Heavy metals (lead, cadmium, arsenic, mercury) are quite unhealthy. And they accumulate over time. The body doesn't expel them quickly. Lead in bones can stay for decades.

Plants are particularly exposed because they pull metals from soil they're grown in.

For this variable, we've looked for third-party testing, published certificates of analysis (COAs), and athletic certifications like NSF Certified for Sport or Informed Sport (which require testing for every batch).

Critical caveat that may be misleading: the Clean Label Project certification tests for contaminants only. Some products recommended on their site have low heavy metals (their definition of clean) but contain three or more known gut irritants. This is why criteria 5 and 6 are treated differently. More clean testing does not always equal "clean formulation."

The 14-Brand Comparison

Protein-per-calorie % uses the §5 formula: (protein g × 4) / total calories. The three tick/cross columns translate criteria 4–6: a tick means the brand passes that criterion (no gut-irritating sweeteners, clean formulation, publishes testing data); a cross means it fails.

Transparent Labs 100% Grass-Fed Whey Protein Isolate (French Vanilla)

Grass-fed whey isolate. Four-ingredient label. NSF Certified for Sport.

The brand says: "Grass-fed whey protein isolate. 88% protein by weight. No artificial sweeteners, colorings, or preservatives."

Data: 28g protein · 120 cal · 93.3% protein-per-calorie · ~2.8–3g leucine (calculated; not published) · $0.07–$0.08 per gram of protein.

Strengths:

• Cleanest whey in this lineup, full stop. Four ingredients: grass-fed whey isolate, natural flavor, stevia, sea salt. Gums, soy lecithin, artificial flavors, sucralose, and acesulfame potassium are all absent. Worth recognizing the difference as so many wheys out there are pretenders in comparison. NSF Certified for Sport plus per-batch heavy metals COA via lot-number lookup. The testing matches the formulation honesty.

Weaknesses:

• Leucine isn't published, only calculated. Whey isolate typically delivers around 10–11% of total protein as leucine, which lands ~2.8–3g for the 28g serving. Likely at threshold; not confirmed on the label.
• Whey-based, so off the table for plant-based readers, dairy-sensitive readers, and anyone managing whey-related digestive friction (no digestive enhancers like protease enzymes).

Who it's right for: A 35+ reader who tolerates whey well, wants the cleanest possible whey isolate at a fair sport-certified price. If you're concerned with digestion or longevity, the conversation moves to a different type or product (either plant-based or whey with heavily fortified digestive assistance).

View Transparent Labs →

Isopure Zero Carb 100% Whey Isolate (Creamy Vanilla)

100% whey isolate. Big-box stores and supplement retail.

The brand says: "100% pure whey protein isolate. Zero carbs, zero lactose, zero fat."

Data: 25g protein · 110 cal · 90.9% protein-per-calorie · ~2.7g leucine (calculated with our best guess, not published) · $0.06–$0.08 per gram of protein.

Strengths:

• Top-tier protein-per-calorie (90.9%). Genuinely lean fuel.
• Lowest cost-per-gram-of-protein tier ($0.064 on sale).

Weaknesses:

• Leucine not published. The calculated estimate (~2.7g) misses the 3g muscle-trigger threshold most adults past 35 actually need.
• Soy lecithin, xanthan gum and artificial flavors. Common gut-stressors past 35 years old.

Who it's right for: A 25-year-old who lifts five days a week, has zero digestive issues and is mid-cut. If you're 40+ or your gut has issues with whey, look further.

View Isopure →

RYSE Loaded Protein (Vanilla Ice Cream)

Whey blend with MCT oil and organic agave inulin. Clean Label Project Clean 16 certified.

The brand says: "Loaded whey protein with MCT oil and prebiotics for next-level recovery and gut health."

Data: 25g protein · 140 cal · 71.4% protein-per-calorie · ~3g leucine (calculated, not published) · $0.07 per gram of protein.

Strengths:

• Clean Label Project Clean 16 certification, meaning it tested below detection on 16 named contaminants. Worth recognizing even when the formulation itself is busy.
• MCT oil and organic agave inulin add a subtle satiety lever the cheap wheys skip.

Weaknesses:

• The formulation is one of the messiest in this lineup. Carrageenan, xanthan gum, cellulose gum, sucralose, acesulfame potassium, soy and/or sunflower lecithin (variable), plus artificial flavors. Six gut-stressor flags in one product.
• The Clean Label badge measures contamination, not formulation. A product can be clean from heavy metals and still contain known gut stressors.

Who it's right for: A 25-year-old who prioritizes taste and a recognizable badge of honor over what's actually in the bag.

View RYSE →

Ghost Whey (Cereal Milk)

Whey blend (isolate, concentrate, hydrolysate) with added digestive enzymes.

The brand says: "100% whey blend with proteases, bromelain, and lactase to support digestion."

Data: 25g protein · 130 cal · 76.9% protein-per-calorie · leucine not published · ~$0.06 per gram of protein.

Strengths:

• Digestive enzyme blend (proteases, bromelain, lactase) actually addresses the gut friction most cheap wheys cause. Sunflower lecithin is the right call over soy.
• Flavor reputation is genuine. The Cereal Milk SKU is the one that converts whey-skeptics into whey-drinkers.

Weaknesses:

• Prop 65 warning printed on the label. That's a state-mandated heavy metals disclosure.
• Cellulose gum, xanthan gum, sucralose, and artificial flavors. While the enzymes help digestion, these other irritants are still likely doing different harm to the gut.

Who it's right for: A gym-going millennial who buys on flavor first, wants a little digestive assistance with the dairy protein, and isn't concerned with gut issues from irritants.

View Ghost →

Myprotein Impact Whey (Vanilla Ice Cream)

Whey concentrate. UK-direct, US-shipped.

The brand says: "Impact Whey Protein delivers 21g of protein per serving with low sugar and low fat to support muscle building and recovery."

Data: 19g protein (Vanilla SKU; Unflavored variant is 22g, but the marketing claim follows the unflavored figure) · 100 cal · 76.0% protein-per-calorie · leucine not published · ~$0.06 per gram of protein.

Strengths:

• Among the cheapest wheys per gram of protein in the lineup. Volume buyers stacking multi-flavor orders keep coming back for the cost.
• Sunflower lecithin instead of soy. Small win, but worth flagging because most wheys at this price tier still default to soy.

Weaknesses:

• The Vanilla SKU delivers 19g per serving. At a 30g serving target, you're paying for an extra scoop to hit a 30g serving of protein.
• 2020 California Prop 65 settlement of $198,000 for lead and cadmium contamination. No published COA in the years since.

Who it's right for: A 22-year-old with a discount code stacking 5kg orders for Costco-style cost-per-gram. Or someone over 35 with no digestive issues.

View Myprotein →

Quest Protein Powder (Vanilla Milkshake)

Whey isolate + casein blend.

The brand says: "Quality protein with no added sugars, soy free, and gluten free."

Data: 24g protein · 110 cal · 87.3% protein-per-calorie · leucine not published · no heavy metals testing · $0.06 per gram of protein.

Strengths:

• Strong protein-per-calorie at one of the lowest costs per gram of protein in the lineup.
• Casein in the blend slows digestion. Some find it more satiating between meals.

Weaknesses:

• Carrageenan and cellulose gum are known gut stressors. "Sunflower / Canola / Soy Lecithin" is an ingredient that contradicts the "Soy Free" claim on the front. Among the busier formulations in this tier increasing the chance of gut issues.
• No published leucine, no testing data and no amino acid panel.

Who it's right for: Someone in their 20s or early 30s loyal to their protein bars, drinking shakes for convenience, with no gut sensitivity. If you're past 35 with a goal towards maintaining optimal digestion, or wanting brands that publish their data, not your best option.

View Quest →

Optimum Nutrition Gold Standard 100% Whey Protein (Vanilla Ice Cream)

Whey blend (isolate, concentrate, hydrolysate). Triple sport-certified: NSF for Sport, Informed Sport, Informed Choice.

The brand says: "24g of whey protein with 5.5g of naturally occurring BCAAs and 4g of glutamine."

Data: 24g protein · 120 cal · 80.0% protein-per-calorie · ~2.5g leucine (calculated; 5.5g BCAA marketing isn't leucine alone) · $0.05–$0.06 per gram of protein.

Strengths:

• The most-tested whey in this lineup. NSF for Sport, Informed Sport, and Informed Choice covers every banned-substance program a serious athlete actually checks.
• Heavy metals tested below detection limits in Consumer Reports' 2025 round (top 5 of 23). Independent testing on the record, not brand-published marketing.

Weaknesses:

• Soy lecithin, cellulose gum, xanthan gum, sucralose, acesulfame potassium, plus natural and artificial flavors. Tolerable under 30. Problematic for gut if past 35 years old.
• Leucine isn't published. The 5.5g BCAA marketing claim is leucine plus isoleucine plus valine combined. Leucine, by far the most important of the 3, calculates closer to 2.5g, below the muscle-trigger threshold most adults past 35 actually need.

Who it's right for: A regular gym-goer in their 20s or early 30s who wants the most-tested whey at the lowest sport-certified price point. If you're past 35 with a sensitive gut, the formulation may work against the goal.

View Optimum Nutrition →

Six Star Pro Nutrition 100% Whey Protein Plus (Vanilla Cream)

Whey blend (concentrate, isolate, hydrolysate). Iovate Health Sciences product line.

The brand says: "30g of high-quality whey protein with 6.7g of BCAAs."

Data: 30g protein · 170 cal · 70.6% protein-per-calorie · ~2.5–3g leucine (calculated, not published) · ~$0.05 per gram of protein.

Strengths:

• The cheapest 30g-per-serving whey in the lineup. For a buyer optimizing purely on grams of protein per dollar, the math runs.

Weaknesses:

• Maltodextrin sits as the second ingredient. That's a high-glycemic carb filler in a product positioned to a weight-loss audience. Hard to reconcile.
• Carrageenan, cellulose gum, xanthan gum, soy lecithin, sucralose, acesulfame potassium, plus artificial flavors. No published heavy metals testing. No leucine published. Iovate, the parent company, has some FDA warning history.

Who it's right for: A buyer optimizing protein gram count against rock-bottom price and willing to wear the formulation density and the parent-company history. If you came to this article because the words "weight loss" did the work, maltodextrin as ingredient #2 is the wrong direction.

View Six Star →

Truvani Plant Based Protein (Vanilla)

Plant-based (organic pea, chia, pumpkin seed). Five-ingredient label.

The brand says: "Real food protein. No artificial flavors, no gums, no fillers. Just five organic ingredients."

Data: 20g protein · 130 cal · 61.5% protein-per-calorie · leucine not published (~2g calculated) · $0.14–$0.25 per gram of protein.

Strengths:

• The shortest ingredient list in the entire lineup. Five organic items, monk fruit as the only sweetener.
• No carrageenan, no gums, no artificial flavors. The minimalism is real.

Weaknesses:

• Most expensive product in the comparison at $0.25 per gram of protein on single-bag, $0.14 on the 5-bag bundle. Premium pricing for 20g per serving and ~2g (calculated) leucine.
• Heavy metals story doesn't match the marketing. Prop 65 warning on every flavor; Lead Safe Mama testing on the Chocolate variant came in at 93% of Consumer Reports' concern level. The Vanilla SKU isn't independently tested.
• Low leucine level means it may not be the best option for those looking to grow or maintain muscle.

Who it's right for: A reader buying on ingredient minimalism. If you're hitting most of your protein goals from food and using a shake as a small top-up, this would work well.

View Truvani →

Ritual Essential Protein 18+ (Vanilla)

Plant-based (PURIS pea), women-led brand. Per-batch heavy metals lookup and Clean Label Project Purity Award.

The brand says: "Made Traceable plant-based protein with 8g of EAAs and 4g of BCAAs per serving."

Data: 20g protein · 120 cal · 66.7% protein-per-calorie · leucine-enhanced (8g EAAs and 4g BCAAs published; specific leucine figure not on label) · $0.15–$0.18 per gram of protein.

Strengths:

• Best testing transparency in this lineup. Per-batch heavy metals data via lot-number lookup, plus a Clean Label Project Purity Award. The "Made Traceable" framework is the operational version of what most brands only claim.
• Sweetener stack is monk fruit and stevia only. EAA total (8g) and BCAA total (4g) are published, which is better than most plant proteins disclose.

Weaknesses:

• One of the more expensive options in the lineup at $0.18 per gram of protein on one-time, $0.15 on subscription. Premium price for a 20g serving.
• Only Pea protein on the label so the formulation will be low in some Amino Acids, including leucine (meaning you'll need to have more protein powder to get the same impact as 20g of another option).
• 20g protein per serving means most readers training will need at least 1.5 scoops to hit the specific leucine figure for building or maintaining muscle.

Who it's right for: Anyone who is primarily buying on testing transparency with less concern for cost. Not optimal for those focused on performance or maintaining muscle.

View Ritual →

RISE311 Plant-Based Protein (Madagascar Vanilla)

Plant-based. Co-founded by celebrity trainer Jason Walsh. Made in the USA.

The brand says: "Small-batch plant protein. Crafted by celebrity trainer Jason Walsh's real-world transformations with celebrities. A 30g protein blend as complete as whey, with 3g leucine, real-ingredient flavor, easy to digest and a great taste."

Data: 30g protein · 160 cal · 75.0% protein-per-calorie · 3.0g leucine (published on label) · full first-party COA, all four heavy metals within Prop 65 daily limits · $0.10–$0.13 per gram of protein.

Strengths:

• 3g leucine cleared and published, alongside the full amino-acid panel. The only brand of 14 to publish both.
• Clean across the board. No carrageenan, no problematic gums (acacia gum is a healthy prebiotic), no artificial flavors and no sucralose. Reb-M for sweetness, protease enzymes to help with digestion and published heavy metals COA on the website.

Weaknesses:

• Not the most expensive but it is at higher end costs per gram of protein in the clean-formulation cohort ($0.13 max, $0.10 on subscription).
• Contains gluten (sprouted barley). Not suitable for celiacs or gluten-sensitive readers.

Who it's right for: Men and Women over 35, who care as much about how they feel after the shake as the protein number on the label. Those who want to see the numbers (test results and amino acid numbers) to feel comfortable. Not the right pick for a college lifter on a tight budget (a cheap whey wins on that lever).

Try RISE311 →

Sunwarrior Warrior Blend Organic (Vanilla)

Plant-based blend (fermented pea, organic hemp seed, goji berry). Made with organic ingredients.

The brand says: "Plant-based protein with branched-chain amino acids, MCTs, and sea salt. Smooth, clean, and effective."

Data: 17g protein · 90–100 cal · 68.0% protein-per-calorie · 1.3g leucine (published) · ~$0.09 per gram of protein.

Strengths:

• Stevia-only sweetener and a respectable ingredient list. MCT oil and acacia gum sit on the supportive side of the gum question.
• Leucine is actually published. Worth noting given how few plant proteins put a number on the label at all.

Weaknesses:

• 17g protein per serving is the lowest in this lineup. To match a single 30g serving you'd need roughly 1.8 scoops, doubling the calories and the cost.
• 1.3g leucine published is well below the 3g muscle-trigger threshold most adults past 35 need to drive muscle protein synthesis. Publishing the number is the right call. The amount of leucine itself is too low though.

Who it's right for: A smaller-frame reader, doing 1–2 light gym sessions a week and using protein powder as a snack rather than a significant contributor to daily protein. If you're 35+ and building or preserving muscle on calorie-restricted days, the leucine math doesn't get you close in one serving.

View Sunwarrior →

Garden of Life Sport Organic Plant-Based Protein (Vanilla)

Plant-based, sprouted bean blend (pea, navy, lentil, garbanzo, cranberry seed). NSF Certified for Sport.

The brand says: "Clean, organic plant-based protein. NSF Certified for Sport. 30g protein, no artificial sweeteners or fillers."

Data: 30g protein · 160 cal · 75.0% protein-per-calorie · leucine not published (~2.5g calculated, plant default) · $0.08 per gram of protein.

Strengths:

• One of the cleaner plant formulations in the lineup. Organic stevia only, no gums, no artificial flavors. An honest read on the back of the bag.
• NSF Certified for Sport. Rare for plant proteins at this price tier and the cert serious athletes actually trust for banned substances.

Weaknesses:

• Consumer Reports' 2025 round measured 2.76 µg lead per serving, 564% over their stated safe limit. That was the highest reading in this lineup.
• Leucine not published. Plant proteins typically deliver around 2.0 to 2.5g per 30g of total protein. Below the 3g muscle-trigger threshold most adults past 35 actually need.

Who it's right for: Hard to recommend right now. NSF Sport certifies against a baseline heavy metals threshold; Consumer Reports tests against a stricter editorial limit, and Garden of Life hasn't published per-batch data to settle the gap. The risk profile doesn't fit a reader buying "clean" protein on principle.

View Garden of Life →

Orgain Organic Plant-Based Protein (Vanilla Bean)

Plant-based blend (organic pea, brown rice, mung bean, chia). USDA Organic certified.

The brand says: "Clean, organic protein with no artificial colors, flavors, or preservatives."

Data: 21g protein · 150 cal · 56.0% protein-per-calorie · leucine not published (~2g calculated, plant default) · ~$0.03 per gram of protein.

Strengths:

• Cheapest plant protein in the lineup at around $0.03 per gram. Bulk buyers will see the appeal.
• USDA Organic certification is real and verifiable. For a reader who values that signal, Orgain delivers it.

Weaknesses:

• Lowest protein-per-calorie in the lineup at 56.0%. For a "weight loss" goal, that's the wrong end of the table. To get 30g protein you need 2 servings, 215+ calories, and 28g+ of carbs from rice dextrins and inulin. If using 2 full servings, will be thick and difficult to drink.
• Consumer Reports' 2025 round measured 0.72 µg lead per serving, 143% over Prop 65's daily limit. The brand publishes no per-batch heavy metals data to argue against the finding.

Who it's right for: A meal-replacement use case where the reader wants smoothie volume and bottom-tier price. If the reason you're reading this article is weight loss, the macro profile here works against you.

View Orgain →

How to Use the Criteria on Any Protein Powder

So now you have the six criteria you can apply to any protein powder you ever encounter. Including ones we didn't test, ones launching next year, ones recommended to you by a friend, ones at the gym counter, ones in a hotel store on a work trip.

Pick up any pouch. Run the checks:

1. Protein % calculation: protein × 4 ÷ total calories. Higher is better.
2. Leucine: printed on the label?
3. Amino acid completeness: do they publish PDCAAS or a full amino panel? If not, opacity is the data point.
4. Sweetener and sugar load: Reb-M stevia, monk fruit, and allulose are clean. Avoid: Sucralose, ace-K, maltodextrin, and agave are caution flags.
5. Clean formulation: read the ingredient list. Warning Flags (i.e. avoid): carrageenan, cellulose gum, xanthan, guar, soy lecithin, artificial flavors, soybean oil.
6. Testing transparency: third-party COAs published? NSF Certified for Sport or Informed Sport? Per-batch lot lookup? If yes, top tier. If not, you're trusting their word.

Six criteria, each one independently checkable.