Evidence-based health tools and expert articles for smarter, healthier living.
Spermidine is a polyamine linked to autophagy and longevity research. Wheat germ, aged cheese, soybeans, and mushrooms are the most cited dietary sources — but USDA FoodData Central does not track spermidine as a standard nutrient. An engineer-builder look at what the data actually shows and where the numbers come from.
Sulforaphane is not a USDA FDC nutrient field. An engineer's tour of what the database does and does not say about broccoli, sprouts, and Brassica vegetables.
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.