How to Pick a Clean Protein Powder: A Label Guide

Protein powder is one of the busiest shelves in our store, and one of the most confusing. Two tubs can look alike and be very different inside. "Clean" isn't a regulated word, so it's up to you to read the label. Here's what we look at when a customer asks us to help them choose.

1. Start with the type of protein

  • Whey concentrate comes from milk and is a complete protein. It keeps a little lactose and fat, which gives it a creamy taste.
  • Whey isolate is filtered further, so it's higher in protein per gram and lower in lactose. Many people who find concentrate heavy do better with isolate.
  • Plant proteins such as pea, brown rice, hemp, pumpkin seed and sprouted grains suit vegans and people avoiding dairy. Blends of two or more plants give a fuller amino acid profile than a single plant.
  • Egg white protein is dairy-free and a complete protein.
  • Bone broth protein is made from simmered bones and is rich in collagen.
  • Collagen peptides count toward your protein grams but are not a complete protein, so they work best alongside other protein foods rather than as your only shake.

2. Read the ingredient list, not just the front

A shorter ingredient list is usually easier to understand. The protein itself should be the first ingredient. Look for:

  • Sweeteners: cane sugar, coconut sugar, stevia, monk fruit, or artificial sweeteners such as sucralose and acesulfame potassium. If you'd rather choose your own sweetness, try an unflavored powder and add fruit.
  • Thickeners and gums: xanthan gum, guar gum and gum acacia give a smoother shake. They're common and generally fine, but some people prefer to skip them.
  • Proprietary blends: these list ingredients without amounts, so you can't tell how much of each you're getting.
  • Add-ins: greens, probiotics, enzymes, creatine or caffeine. Nice if you want them, but check you're not doubling up on something you already take.

3. Compare protein per serving

Look at the Protein line on the Nutrition or Supplement Facts panel and the serving size next to it. A 30-gram scoop with 25 grams of protein is a very different product from a 45-gram scoop with 20 grams. While you're there, check calories, total sugars and added sugars, especially if you plan to drink it every day.

4. Look for testing and sourcing seals

Seals tell you something specific, so it helps to know what each one means:

  • NSF Certified for Sport and Informed Sport / Informed Choice: the product is tested for substances banned in sports and checked against its label. Athletes often look for these.
  • Clean Label Project: the product is tested for contaminants such as heavy metals. Plant proteins can pick up trace metals from the soil they grow in, so some brands publish test results. It's fair to ask.
  • USDA Organic: the ingredients were grown and processed to organic standards.
  • Non-GMO Project Verified, Certified Gluten-Free, Certified Vegan, Kosher: each covers just what it says.
  • Grass-fed on a whey label describes how the cows were raised. Look for a named certification if that matters to you.

5. Check allergens and how it agrees with you

Milk, soy, egg and tree nuts (often coconut) are the allergens you'll see most on protein powders. If a powder leaves you bloated, try a different protein type, an isolate instead of a concentrate, or one without sugar alcohols or gums. Starting with a half scoop is an easy way to test a new powder.

6. Pick a flavor you'll use

Unflavored powders are the most flexible: blend them into smoothies, oatmeal or pancake batter. Vanilla and chocolate are the safest bets for shakes. Many brands sell single-serve packets, a good way to try a flavor before buying a full tub. Need ideas? Try our Mango Cherry Protein Shake.

Find it at Nutrition World

Browse the full protein powder collection, or stop by Nutrition World at 2401 PGA Blvd, Suite 136 in Palm Beach Gardens and we'll help you compare labels side by side.

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure, or prevent any disease.