People Actually Eat Their Microgreens Every Day. Here Is What Happened.
April 8, 2026
The short version
A Colorado State University research team ran the first randomized human trial testing whether people could actually sustain daily microgreen consumption. They could. Twenty-four healthy adults aged 45 to 70 hit 95.6% compliance eating two cups of microgreens every day for two weeks. Red cabbage microgreens also produced a statistically significant reduction in gastrointestinal inflammation symptom scores.
Why this matters for microgreens
This study required participants to eat microgreens raw, not cooked, because researchers had no data on how heat affects their phytochemical content. That constraint points directly at what the living tray model solves. Glucosinolates in red cabbage microgreens begin converting to less bioactive forms the moment the plant is cut; a customer who cuts at the moment of eating captures those compounds at their peak, before any degradation clock starts. Pre-cut microgreens in a bag cannot make that claim.
What the researchers found
Colorado State University and Pennington Biomedical Research Center researchers enrolled 24 healthy middle-aged and older adults in a crossover trial, randomizing them to consume two cups per day of either red cabbage or beet microgreens for two weeks, then switching. Compliance was high across both groups, with participants integrating the greens into smoothies, salads, and sandwiches. Red cabbage microgreens produced a significant improvement in gastrointestinal inflammation symptom severity scores (p = 0.047). Bowel movement patterns, blood pressure, heart rate, and gut microbiota diversity were unchanged across both interventions, indicating strong tolerability.
The bottom line
This trial removes one of the main objections to microgreens as a functional food: that people will not actually eat them consistently. They will, and at high compliance. The signal on gut inflammation from red cabbage microgreens is early and small-scale, but it aligns with what is already known about glucosinolates and anthocyanins. Eating two cups of fresh brassica microgreens daily, harvested and consumed at their nutritional peak, is both practical and well-tolerated.
Source: Lee, S.Y., Michell, K.A. et al., "Feasibility and Tolerability of Daily Microgreen Consumption in Healthy Middle-Aged/Older Adults: A Randomized, Open-Label, Controlled Crossover Trial." Nutrients, 2025. DOI: 10.3390/nu17030467