Alfalfa and zinc: what's actually in a serving

Alfalfa isn't a meaningful source of zinc. USDA food composition data puts raw alfalfa sprouts at about 0.92 mg of zinc per 100 grams — roughly a tenth of the adult Recommended Dietary Allowance — and a dried-leaf capsule serving, which weighs far less than 100 grams, contributes less still. When the two show up together on a label, it's a formulation choice, not evidence that alfalfa adds meaningfully to a zinc target.

How much zinc alfalfa actually has

USDA FoodData Central lists raw alfalfa sprouts at roughly 0.92 mg of zinc per 100 g, against an adult RDA of 11 mg/day for men and 8 mg/day for women, according to NIH's Office of Dietary Supplements. That figure is for the fresh sprouted food, not a dried-leaf supplement capsule — USDA doesn't publish a separate number for the capsule form, and a typical tablet (400–650 mg) is a small fraction of the 100 g the USDA figure describes. Either way, alfalfa isn't a food or supplement source you'd reach for specifically to hit a zinc number.

Why the two are sold together anyway

Combination products pairing a botanical like alfalfa with a mineral like zinc show up in general-wellness and appetite-support formulas, usually built around a broad "nutrition support" positioning rather than a tested interaction. We didn't find a trial testing alfalfa and zinc together specifically — the pairing is a formulation convention, not documented synergy. If a product markets the combination as doing something the ingredients don't do separately, that claim isn't backed by research we could find.

How it compares to a real zinc source

NIH's Office of Dietary Supplements lists oysters as the single richest common dietary source of zinc, with beef, crab and pumpkin seeds providing several milligrams per typical serving. Against those, alfalfa's 0.92 mg per 100 g of raw sprouts, or a capsule's fraction of that, isn't in the same range at all.

What zinc itself is

Zinc is an essential mineral involved in normal immune, metabolic and enzymatic function, with its own dosing and safety picture that has nothing to do with alfalfa. See what is zinc and how much zinc should you take a day for that separately.

Questions people ask

Does alfalfa contain zinc?

A small amount — about 0.92 mg per 100 g of raw sprouts, per USDA data. That's a minor contribution against the 8–11 mg adult RDA, and less still from a typical capsule serving.

Is alfalfa a good source of zinc?

No. If zinc is the goal, a dedicated zinc supplement or zinc-rich food (dairy, meat, shellfish, legumes) is a more direct route — alfalfa's zinc content is too small to rely on.

Why do some products combine alfalfa and zinc?

It's a formulation choice common in general-wellness and appetite-support blends, not evidence of a tested combined effect. No trial identified for this page tested the two together.

Related reading: what is alfalfa, what is zinc, and alfalfa dosage.