Wheatgrass is the young shoot of the wheat plant, sold as juice or powder.
Calculator Official intake Study doses Best form Safety Sources
This is not an essential nutrient, so there is no official daily intake. Only study doses are shown.
These are doses tested in research, not personal advice. Some exceed the upper limit because they were short courses or given under medical care.
No single dose
In 23 people with active ulcerative colitis of the lower bowel, 100 ml fresh wheatgrass juice a day for a month reduced disease activity and rectal bleeding against placebo. One small trial; not a substitute for treatment.
Juiced fresh, or dried as powder.
No well-documented interactions.
Little safety data.
Pregnant, breastfeeding, on medication, or managing a health condition? Check with a doctor or pharmacist before starting a supplement.
Values checked: November 12, 2026.