Best Plant-Based Protein Powder: What the Seals Miss

Plant protein has a heavy-metal problem worth taking seriously. In October 2025, Consumer Reports found lead above its level of concern in most protein powders and shakes it tested. That’s why we start every plant protein pick with third-party certification.

The three NSF-certified options, and what Consumer Reports found

All three carry NSF Certified for Sport, but certification doesn’t screen for everything. When Consumer Reports tested protein powders for lead in October 2025, it advised limiting two of them to once a week:

• Garden of Life Sport Organic Plant-Based Protein: NSF Certified for Sport, but Consumer Reports recommends having it no more than once a week because of its lead level.
• Momentous 100% Plant Protein: NSF Certified for Sport, but Consumer Reports gave it the same once-a-week advice.
• Vega Sport: NSF Certified for Sport. Check Consumer Reports’ results for the exact product before you buy.

This is exactly why we tell you to look past the seal. A certification tells you one thing has been checked. It doesn’t tell you everything.

What this means for you

If plant protein is a daily habit, check Consumer Reports’ published results for the specific product, rotate between protein sources, and lean on whole-food protein when you can.

How to compare them yourself

• Protein per scoop: compare grams of protein per serving, not the scoop size.
• Protein sources: pea, rice, pumpkin, and blends each taste and mix differently.
• Added sugar and sweeteners: check the label if you’re avoiding them.
• Cost per 20 g of protein: this is the fairest way to compare prices.

Reduce your exposure

Rotate protein sources, don’t go beyond the servings you need, and favor whole-food protein where you can.

This article is for education, not medical advice. These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. We may earn a commission from links on this site.