There's no single "best" vegan protein powder for everyone, and rankings go out of date as formulas change. What lasts is knowing what to look for. Here are five criteria that separate a good vegan protein powder from an average one.
Does it provide a complete amino acid profile?
Most single plant proteins are low in at least one essential amino acid; in lab comparisons, plant protein isolates were typically lower in methionine and lysine than animal proteins. Blends solve this. Pea is rich in lysine and rice supplies methionine, and research on combining plant proteins shows how complementary sources can match the profiles people need.
How much protein is in each serving, and is it digestible?
Check grams of protein per scoop and compare it with the calories. Digestibility matters too: in a randomized trial, pea protein's digestibility was similar to casein's, and it met all essential amino acid requirements on its own.
Is it certified organic?
"Natural" isn't regulated, but organic is. USDA organic standards prohibit genetic engineering and limit synthetic inputs to an approved list, verified by an accredited certifier.
Is it independently tested?
Look for batch testing for heavy metals and other contaminants, with results you can read. When Consumer Reports tested protein drinks, every product had at least one sample containing arsenic, cadmium, lead or mercury. Certification programs such as Informed Protein also verify that the protein on the label is actually in the tub.
What's in it besides protein?
A short, recognizable ingredient list is a good sign. Watch for added sugar, artificial sweeteners, gums and fillers, and decide which matter to you. Our full guide on how to choose a clean plant-based protein powder covers labels, certifications and digestion in more detail, and what makes a protein powder clean is the quick version.
Our own pick is So Lean & So Clean: 23g of complete organic plant protein per serving from pea and rice, two servings of organic greens, no added sugar and no artificial sweeteners, fillers or gums. See how we test on our 5 Nation Standard page.
