Published onJanuary 9, 2025Diet Supplement Powders: Evidence Guide to Protein, Meal Replacements, and Greensdiet-supplementsprotein-powdermeal-replacementnutritionhealthpowder-supplementsSupplement powders vary enormously in evidence quality and appropriate use. This guide covers protein powders, meal replacements, greens powders, and fibre supplements — what the research shows for each and how to evaluate quality.