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Alfalfa

Alfalfa suppliers and sourcing guide

Alfalfa is Medicago sativa, a perennial legume grown worldwide as a forage crop. The ingredient trade uses the aerial parts (leaf and stem), harvested before or at early bloom, then dried and milled to a powder, and also sells alfalfa juice powder and extracts. Seed is sold separately for sprouting. Buyers usually purchase leaf powder by mesh size for tablets, powders and greens blends.

Also known as
Medicago sativa · lucerne · alfalfa leaf · alfalfa herb
Facts checked
November 2026

Forms and grades of alfalfa

Suppliers sell different products under the same name. Specify the one you need.

  • Leaf powder

    Dried, milled aerial parts with nothing removed. Sold by mesh size and usually not standardized; color and chlorophyll content vary with harvest.

  • Juice powder

    Pressed juice from fresh alfalfa, concentrated and dried, often on a carrier such as maltodextrin, for drink mixes and greens powders.

  • Extract

    Water or hydroalcoholic extract of the herb, dried to a powder; some grades declare a saponin or chlorophyll content.

  • Organic

    Leaf or juice powder from certified organic fields, with the organic certificate tied to the lot.

  • Seed

    Whole seed for sprouting, sold under separate microbiological specifications from the herb.

What to check on the COA

Compare each result with your own specification when the lot arrives.

Identity
Macroscopic and microscopic examination or HPTLC fingerprint against a reference to confirm Medicago sativa and screen for other forage grasses or weeds.
Moisture / loss on drying
Loss on drying against the spec; dried herb that is too moist molds and loses color in storage.
Heavy metals
Lead, arsenic, cadmium and mercury, usually by ICP-MS, checked against the buyer's limits and Prop 65 exposure targets where relevant.
Microbiology
Total plate count, yeast and mold, E. coli and Salmonella. Raw herb powders carry more microbial load than extracts and may be steam treated, which should be stated on the COA.
Pesticide residues
Multi-residue screen, required for organic claims and commonly requested for conventional material.
Physical tests
Mesh or particle size, bulk density, color and foreign matter (stems, soil, other plant material).

Storage, lots and expiry

Storage and shelf life

Store alfalfa powder sealed in lined bags or drums in a cool, dry, dark place; light and moisture fade the green color and allow mold growth. Reseal opened containers and keep them off the floor. Shelf life or retest date comes from the supplier's specification and is often confirmed with a color and microbiology check.

Lots and expiry dates

Color, protein and chlorophyll content vary with cutting, field and drying method, so check each lot against the COA and a retained sample. Record the supplier lot, country of origin and retest date at receiving and rotate stock first-expiry-first-out.

Regulatory status

Facts from regulators and standards bodies, each linked to its source.

  • 21 CFR 182.10 lists alfalfa herb and seed (Medicago sativa L.) among spices and other natural seasonings and flavorings generally recognized as safe for their intended use.

    Source: ecfr.gov (opens in a new tab)
  • 21 CFR 182.20 also lists alfalfa among essential oils, oleoresins (solvent-free) and natural extractives generally recognized as safe for their intended use.

    Source: ecfr.gov (opens in a new tab)
  • The EU Novel Food status Catalogue entry for Medicago sativa (POL-NF-00499) concerns the aerial parts and lists them as not novel in food.

    Source: ec.europa.eu (opens in a new tab)

This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.

Alfalfa suppliers

Manufacturers and distributors whose own websites say they sell it.

  • Frontier Co-op

    Distributor · Norway, IA

    Frontier Co-op is a member-owned cooperative in Norway, Iowa, that sources and sells bulk herbs, spices, teas and botanicals by the pound, with a separate wholesale site for business buyers.

    • Certified organic
    • Kosher

Suppliers are in alphabetical order and none pays to appear. Each claim is checked against the supplier’s own website on the date shown. Ask for the specification sheet and a recent COA before you order, and confirm details with the supplier.

Frequently asked questions

What forms of alfalfa can brands buy?

Common forms include leaf powder, juice powder, extract, organic and seed. Ask each supplier for the specification sheet of the exact grade they quote.

What should the COA for alfalfa include?

Expect identity, moisture / loss on drying, heavy metals, microbiology, pesticide residues and physical tests, each with its method, specification and result for that lot.

How should alfalfa be stored?

Store alfalfa powder sealed in lined bags or drums in a cool, dry, dark place; light and moisture fade the green color and allow mold growth. Reseal opened containers and keep them off the floor. Shelf life or retest date comes from the supplier's specification and is often confirmed with a color and microbiology check.

What is the regulatory status of alfalfa?

21 CFR 182.10 lists alfalfa herb and seed (Medicago sativa L.) among spices and other natural seasonings and flavorings generally recognized as safe for their intended use. 21 CFR 182.20 also lists alfalfa among essential oils, oleoresins (solvent-free) and natural extractives generally recognized as safe for their intended use. The EU Novel Food status Catalogue entry for Medicago sativa (POL-NF-00499) concerns the aerial parts and lists them as not novel in food.

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