Barley grass powder

Tier 3 — weak evidence · Nutrient-dense · Chlorophyll · Antioxidant · Green powder · Alkaline

Young barley shoots harvested before grain formation, concentrated into a powder rich in chlorophyll, vitamin K, vitamin C, iron, calcium, and antioxidant enzymes (SOD, catalase). Small Japanese and Korean trials suggest antioxidant and mild blood sugar-stabilising effects. However, most trials are small (N<50), short-term, and at doses providing marginal nutrient contributions. Evidence is significantly weaker than comparably positioned supplements. Processing method critically affects quality — freeze-drying or low-temperature air-drying preserves more enzyme activity than high-heat…

Dose: 2–10 g/day of freeze-dried or cold-processed barley grass powder; higher doses needed for meaningful nutrient contributions