How many calories are in microgreens?
There is no single verified calorie number for all microgreens. Energy depends on the crop’s measured protein, available carbohydrate, fat, fiber, moisture, and the calculation method. A mature vegetable’s FoodData Central entry should not be relabeled as the microgreen version.
If you have a packaged product, its tested nutrition label is the best practical answer. If you are comparing research, use only results that identify the crop, fresh-weight basis, and analytical method.
Why the old-style “complete calorie chart” is misleading
The USDA-led 25-variety microgreen study measured selected vitamins and carotenoids—not calories or a complete macronutrient profile. Other experiments measure protein or fiber in a small number of crops under specific conditions. Combining unrelated studies and mature-vegetable records creates a table that looks complete but is not methodologically comparable.
How calories are calculated
Food labels generally derive energy from measured macronutrients. A simplified calculation uses approximately:
- 4 kcal per gram of protein;
- 4 kcal per gram of available carbohydrate;
- 9 kcal per gram of fat.
Fiber and regional labeling rules require additional care. Do not calculate calories from protein alone, and do not infer missing carbohydrate or fat values from another crop.
What can be said responsibly?
Fresh microgreens contain substantial water and are usually eaten as a garnish or salad component, so a typical serving contributes only part of a meal’s energy. That qualitative statement is safer than assigning the same calorie value to radish, sunflower, pea shoots, and kale without matched laboratory data.
For a product-specific answer:
- Check the package label and serving size.
- Confirm whether the values are per serving or per 100g.
- If using a paper, confirm “fresh weight” rather than “dry weight.”
- Do not substitute mature leaves, seeds, sprouts, or powders.
Related evidence guides
- Microgreens nutrition facts per 100g
- Protein evidence per 100g
- Fiber evidence per 100g
- Nutrition evidence hub
- 17 ways to use a fresh harvest
- Compare 23 microgreen varieties
Bottom line
Use a tested product label for dietary tracking. Use crop-specific research for scientific comparison. Treat any “complete microgreens calorie chart” without crop-level sources and a consistent method as an estimate, not an exact database.
Last evidence review: 23 August 2026. This page is educational and not medical advice.