💡 Key Takeaways
Table of Contents
There are many ways to add vegetables to a powdered supplement. Dehydrated spinach, spirulina, cabbage extracts, fruit concentrates. Most of the market works with heat-treated adult vegetables, mixed with excipients and flavorings.
The decision to use freeze-dried microgreens as SYNERGIC's sole base was not an aesthetic choice. It has a concrete logic, which we explain here.
What is a microgreen and why harvest time matters
A microgreen is a vegetable, herb, or legume seedling harvested between 7 and 21 days after germination, when it has just developed its cotyledons and, sometimes, its first true leaves. It is not a sprout—which is consumed whole, root included, after 3–5 days in water—nor an adult vegetable, nor a baby leaf.
Harvest time is what defines it nutritionally. In this phase, the seed has mobilized its reserves to drive initial growth: vitamins, carotenoids, and bioactive compounds concentrate in the young tissues before being redistributed for plant development. A study by Xiao et al. in the Journal of Agricultural and Food Chemistry (2012) analyzed 25 commercial microgreen varieties and found significantly higher concentrations of vitamins and carotenoids than in equivalent mature leaves, with important variations depending on the species and the nutrient measured.
What that study does not say—and what many sites omit—is that the ratios are neither uniform nor universal. Red cabbage microgreen showed the highest concentrations of ascorbic acid; green daikon radish, tocopherols; garnet amaranth, phylloquinone. Each species has its own profile. There is no microgreen that is "40× more nutritious than any adult vegetable" in all nutrients.
→ For a complete explanation of what microgreens are, how they differ from sprouts, and what science says about their nutritional value: What are microgreens?
Why these five species
SYNERGIC contains broccoli, kale, red cabbage, purple radish, and peas. Each species is included for a specific reason.
| Species | Why we included it | Key compound |
|---|---|---|
| Broccoli | Largest documented source of glucoraphanin in microgreen format, direct precursor to sulforaphane | Glucoraphanin + myrosinase |
| Kale | Broad profile: vitamin K, vitamin C, beta-carotenes, glucosinolates distinct from broccoli | Phylloquinone, beta-carotene |
| Red cabbage | High concentration of anthocyanins; among the species with the highest documented ascorbic acid content in microgreens (Xiao et al., 2012) | Anthocyanins, vitamin C |
| Purple radish | Glucosinolates with a different profile than broccoli (glucoraphenin); broadens the phytochemical diversity of the blend | Glucoraphenin, anthocyanins |
| Peas | Only legume in the blend; provides vegetable protein, essential amino acids and softens the overall flavor profile | Complete protein, chlorophyll |
The first four are cruciferous vegetables—the plant family with the most documented scientific interest in phytochemistry—and radish expands the glucosinolate profile beyond sulforaphane. Peas add a protein component that cruciferous vegetables do not cover.
→ Why cruciferous vegetables are a unique plant category: Why cruciferous vegetables are different from other vegetables
→ The actual variability of glucoraphanin among broccoli varieties: Glucoraphanin in broccoli: variety, cultivation, and actual concentration
Harvest time: why we don't wait longer
The logic is as follows: when the seed germinates, it mobilizes its reserves into the seedling's tissues. In the cotyledon stage—the microgreen stage—these reserves are concentrated in the young leaves. As the plant grows, the compounds are redistributed to roots, stems, and reproductive structures. The concentration per gram of leaf decreases.
Harvesting at this stage is not an arbitrary choice based on gastronomic trends. It's about harvesting at the moment of highest phytochemical density per gram of tissue, before the plant invests those resources in growing.
On our indoor farm, we monitor the harvest point variety by variety. Broccoli and kale are typically harvested between 9 and 12 days. Red cabbage and radish, between 7 and 10. Peas, a little later, between 12 and 16. Each species has its optimal window, and it's not the same for all.
Freeze-drying: why we don't use heat
Once harvested, the microgreens are freeze-dried. The process works like this: first, the product is rapidly frozen to –40°C. Then, in a vacuum chamber, the ice sublimates directly into vapor without passing through a liquid state. The water disappears; the cellular structure and the compounds it contains remain.
The critical point for broccoli microgreens is myrosinase. This enzyme, responsible for converting glucoraphanin into sulforaphane, is inactivated by heat starting at approximately 70°C. Conventional dehydration—which operates between 60°C and 90°C—destroys it before the powder is dry. Freeze-drying does not apply heat at any stage of the process. Myrosinase and glucoraphanin reach the final powder intact, available to activate upon contact with saliva and the digestive environment.
A study by Bouranis et al. in Foods (2023) documented sulforaphane bioavailability in people who consumed fresh broccoli microgreens, with detectable levels in blood, confirming that the glucoraphanin-myrosinase system works in this format. Low-temperature freeze-drying preserves this system.
→ Why the form of food changes what the body absorbs: Nutrient bioavailability: why you absorb 5% of some supplements?
How to integrate it into your daily life
A tablespoon a day in water, in a smoothie, in yogurt, or directly in any meal. The flavor is mild—the peas balance the bitterness of the cruciferous vegetables—and does not alter the base dish.
At home, we use it daily, even with the children. What we discovered over time is that the powdered format eliminates the main barrier to consuming cruciferous vegetables: their intense flavor. Fresh kale, red cabbage, and radish are not easy to integrate into a child's diet. In powder form, mixed with peas, they disappear into any liquid.
Consistency matters more than quantity. A daily tablespoon for weeks is more useful than large doses occasionally. This is the same logic that applies to any dietary habit: what is maintained, works.
Conclusion
The choice of freeze-dried microgreens as the basis of SYNERGIC is not a trend but a technical decision: it is the format where each species provides its maximum concentration of bioactive compounds with the least destructive processing. Broccoli, kale, red cabbage, purple radish, and peas create a deliberately diverse phytochemical profile that covers ranges of glucosinolates, anthocyanins, vitamins, and vegetable protein.
A daily tablespoon is, therefore, a consistent dose of stable nutrients, without preparation. It is not a miraculous concentration solution. It is infrastructure. Nutritional sustainability is always the result of what is maintained, not what is spectacular.
SYNERGIC is available on a monthly subscription or as a one-time purchase. See full composition and nutritional values →
