{"ok":true,"entry":{"slug":"barley-grass","kind":"supplement","name":"barley grass","aliases":["barley green","Hordeum vulgare grass"],"brands_sg":["Swanson Vitamins","Green Foods","Organic Traditions","Micro Ingredients","Nutricost"],"class":"greens","tags":["general"],"use_for":"a greens powder — human trials are few and small","use_after":"timing untested","use_duration":"trials dosed daily for 4-12 weeks","take_with":null,"pros":["carries fibre, minerals and vitamins from the leaf","one 12-week placebo-controlled trial in volunteers","not listed in HSA's prohibited/restricted annexes"],"cons":["that trial found no lipid-lowering effect","human trials are small and short","no standard dose — trials used 15 g or one capsule"],"dose_note":"trials used 15 g of young barley leaf extract a day for 4 weeks, or one capsule a day for 12 weeks; no standard dose is established","dosage":{"ul":null,"unit":"g","fda_dv":null,"rda_ai":null,"ul_status":"none_established","population":"general adult","hsa_max_daily":null},"ul_status":"none_established","sg_class":null,"cautions":["the 12-week trial enrolled healthy volunteers only","longest human trial found is 12 weeks — longer-term data is missing"],"clashes":[],"sources":[{"id":"bg_rct2015","url":"https://europepmc.org/article/PMC/PMC4458530","label":"Evidence-Based Complementary and Alternative Medicine 2015 — Effects of a Dietary Supplement with Barley Sprout Extract on Blood Cholesterol Metabolism (randomised, placebo-controlled, n=51, 12 weeks)","quote":"Subjects were randomly divided into two groups: one group consumed a single capsule of barley leaf extract daily … for 12 weeks … Our study failed to show significant lipid-lowering effects of barley sprout extract","accessed":"2026-08-27"},{"id":"bg_dm2002","url":"https://europepmc.org/article/MED/11976562","label":"Diabetes & Metabolism 2002 — Effects of young barley leaf extract and antioxidative vitamins on LDL oxidation and free radical scavenging activities in type 2 diabetes (n=36, 4 weeks)","quote":"The subjects received one of the following supplements daily for 4 weeks: 15 g BL, 200 mg vitamin C and 200 mg vitamin E (CE), or BL plus CE (BL + CE).","accessed":"2026-08-27"},{"id":"bg_rev2018","url":"https://europepmc.org/article/PMC/PMC5904770","label":"Oxidative Medicine and Cellular Longevity 2018 — Preventive and Therapeutic Role of Functional Ingredients of Barley Grass for Chronic Diseases in Human Beings (composition review)","quote":"Barley grass is rich in functional ingredients, such as gamma-aminobutyric acid (GABA), flavonoids, saponarin, lutonarin, superoxide dismutase (SOD), K, Ca, Se, tryptophan, chlorophyll, vitamins (A, B1, C, and E), dietary fiber, polysaccharide","accessed":"2026-08-27"},{"id":"hsa_pr_notlisted","url":"https://file.go.gov.sg/hsa-chp-prohibited-restricted-ing-guidelines.pdf","label":"HSA Singapore — Guidelines on Prohibited and Restricted Ingredients in HS and TM, GL-CHPB-1-012 Rev. No. 001 (Oct 2025), Annex A (118 rows, Abrus to Zinc) and Annex B — both searched, no row for this ingredient","quote":"A list of specific prohibited and restricted ingredients is provided in Annex A … This list is not exhaustive. Dealers are responsible to ensure that their products are safe and appropriate for the target consumers.","accessed":"2026-08-27"},{"id":"iherb_sg","url":"https://sg.iherb.com/c/barley-grass","label":"iHerb Singapore — Barley Grass category, default (best-selling) order","quote":"1 - 19 of 19 results … Swanson Vitamins, Barley Grass Juice Powder … Green Foods, Green Magma®, Barley Grass Juice Powder … Organic Traditions, Superfoods, Barley Grass Juice Powder … Micro Ingredients, Moringa … Nutricost, Organic Barley Grass Juice Powder","accessed":"2026-08-27"}],"brand_certs":null,"updated_at":"2026-08-29T16:16:12.75901+08:00"},"disclaimer":"kozen-x is not a medical device and does not give medical advice. it lists what published sources have written down. absence of a record is not the same as safe."}