Microgreens Vitamin K Content: Evidence and Medication Care

Quick answer

Microgreens can contain vitamin K1, also called phylloquinone, but the amount varies widely by species, cultivar, light, harvest stage, and analytical method. There is no one vitamin K value for every microgreen mix.

People taking warfarin or another vitamin K–sensitive anticoagulant should not make abrupt dietary changes based on a generic chart. Follow the clinician’s advice about consistent intake and use verified product information where possible.

What the landmark study measured

The USDA-led 25-variety study measured phylloquinone alongside vitamin C, tocopherols, and carotenoids in commercial microgreens. The important conclusion for consumers is variability. A value for one red cabbage, garnet amaranth, or basil sample does not become the value for “microgreens.”

It also was not a complete calorie, protein, fiber, and mineral label. See the nutrition facts per 100 g guide for its exact scope.

Why vitamin K values differ

Vitamin K1 is associated with photosynthetic green tissue, yet leaf color alone cannot quantify it. Differences can come from:

• plant species and cultivar;
• cotyledon versus true-leaf proportion;
• light intensity and duration;
• harvest age;
• water content;
• sample storage and laboratory method.

Always keep the unit visible. Micrograms per 100 g fresh weight are not the same as micrograms per gram dry weight.

Medication and consistency

Vitamin K participates in normal blood clotting. With some anticoagulant therapies, sudden changes in vitamin K intake can affect treatment management. The practical goal is usually consistency, not avoiding every green food, but individual advice belongs to the prescribing clinician.

Do not use a mixed-tray photograph to estimate a dose. Record the exact product, portion, and frequency, and bring that information to your healthcare professional.

Food choices

Microgreens can add variety, but they need not be treated as a vitamin supplement. Rotate crops, use realistic portions, and build meals with vegetables, legumes, whole grains, protein foods, and healthy fats.

Read the vitamin and mineral guide, serving-size guide, kale nutrition guide, broccoli nutrition guide, and recipe collection.

Bottom line

Vitamin K1 is a measured component of some microgreens, not a universal fixed number. Crop-specific evidence and consistent dietary habits matter, especially when medication is involved.

Frequently asked question: does cooking remove vitamin K?

Do not assume a quick rinse, blending, or ordinary cooking makes vitamin K irrelevant. Preparation can change foods in several ways, but medication management should use verified intake information and clinical guidance rather than a home-processing guess.