What they are, why they're nutrient-dense, and how to make them part of your everyday meals.
Microgreens are the young seedlings of vegetables and herbs, harvested just 7–21 days after germination — after the first true leaves appear, but well before the plant matures. They sit between a sprout and a baby green in size, and are prized for concentrating a large share of the mature plant's nutrition into a much smaller, more tender leaf.
Research from the University of Maryland and USDA's Agricultural Research Service (2012, Journal of Agricultural and Food Chemistry) found that microgreens contain, on average, 4 to 40 times more nutrients — including vitamin C, vitamin E, vitamin K and beta-carotene — than their mature counterparts, gram for gram. Red cabbage microgreens, for example, showed roughly 6 times more vitamin C and 69 times more vitamin K than mature cabbage.
Cruciferous microgreens (broccoli, radish, cabbage) also carry substantially higher levels of glucosinolates — compounds linked to antioxidant activity — than their mature vegetables, and emerging 2025 research points to benefits for gut microbiome diversity and inflammation markers when these greens are eaten regularly.
| Aspect | Microgreens | Mature Vegetables |
|---|---|---|
| Harvest time | 7–21 days | 60–90+ days |
| Nutrient density (by weight) | 4–40x higher in key vitamins | Baseline |
| Prep needed | None — ready to eat | Washing, cooking |
| Serving size | Small handful (10–30g) | Larger portions typical |
Per 25g serving (indicative, varies by variety): a good source of vitamin C, vitamin K, folate and beta-carotene, with meaningful polyphenol and fibre content. Broccoli and radish trend highest in glucosinolates; sunflower and pea shoots are relatively higher in protein and fibre.
University of Maryland / USDA-ARS, Journal of Agricultural and Food Chemistry (2012) · American Chemical Society press release (2023) · Nature Scientific Reports (2025), nutritional quality profiles of six microgreens · PMC (2025), Microgreens: nutritional properties, health benefits, production techniques and food safety risks.