营销话术证据 D · 营销话术
燕窝、阿胶补血养颜
真相
燕窝主要是糖蛋白，阿胶基本是胶原（明胶）；声称的功效多来自实验室与动物，缺高质量人体证据。
机制速览
两个流传最广的孕产老说法，拿吸收这一关一对，就站不住了。
来源（3）
- Hsu, D., Lee, C., Tsai, W., & Chien, Y. (2017). Essential and toxic metals in animal bone broths. Food & Nutrition Research, 61(1), 1347478. Ca and Mg per serving did not exceed low tens of mg (<5% of daily recommended); Pb/Cd intake risk judged minimal.
- Chen, J., & Tsim, K. W. K. (2020). A review of edible jujube, the Ziziphus jujuba fruit: a health food supplement for anemia prevalence. Frontiers in Pharmacology, 11, 593655.
- Hurrell, R., & Egli, I. (2010). Iron bioavailability and dietary reference values. The American Journal of Clinical Nutrition, 91(5), 1461S-1467S. Abstract only (the AJCN supplement full text could not be retrieved): iron bioavailability is estimated at 14-18% for mixed diets and 5-12% for vegetarian diets in subjects with no iron stores, the values used to set dietary reference values. Phytate, polyphenols, calcium, ascorbic acid and muscle tissue shift absorption strongly in single-meal isotope studies but only modestly in multimeal studies with a varied diet; the nature of the meat factor is unresolved; iron status generally has a greater effect than diet composition. The abstract gives no separate heme vs non-heme absorption percentages (abstract, PMID 20200263).