Evidence-based health tools and expert articles for smarter, healthier living.
Building HealthSavvyGuide on the USDA FoodData Central API, one compound keeps showing up almost exclusively in mushroom records: ergothioneine. Here is what the data, the literature, and the open questions actually say in 2026.
A data-first tour of the USDA flavonoid database: which foods actually contain quercetin in measurable amounts, what bioavailability research shows, and what current evidence supports.
USDA FoodData Central tracks tryptophan as nutrient ID 1210. Here is what the data shows about top food sources, realistic portion values, and bioavailability — with NIH citations.
Building HealthSavvyGuide on USDA FoodData Central, I ranked 1,465+ foods on potassium density - bananas barely make the top 20. Here's what the data actually shows about blood pressure, the Na:K ratio, and cooking losses.
An engineer's walk through the USDA FNDDS Flavonoid database (Release 3.4), comparing the six tracked anthocyanin compounds across wild blueberries, chokeberry, blackberry, black currant, red cabbage and more. Informational only.
Vitamin D is the one micronutrient where the USDA FoodData Central database alone is not the answer. Fatty fish, egg yolks, UV-exposed mushrooms, and fortified foods cover most of the dietary load — but sunlight, latitude, and individual factors swing the math more than any food list can capture.