营销话术证据 A · 指南级
β-胡萝卜素抗癌 (吸烟者也吃)
真相
CARET 1996 显示吸烟者补 β-胡萝卜素显著增肺癌而提前终止。抗氧化剂 ≠ 安全。
机制速览
进电影院一片黑，要好一阵才看得见座位——靠的就是维生素 A 在你视网膜里翻的那个开关。
来源（2）
- National Institutes of Health, Office of Dietary Supplements. (2025). Vitamin A and Carotenoids — Fact Sheet for Health Professionals.
- Brown, M. J., Ferruzzi, M. G., Nguyen, M. L., Cooper, D. A., Eldridge, A. L., Schwartz, S. J., & White, W. S. (2004). Carotenoid bioavailability is higher from salads ingested with full-fat than with fat-reduced salad dressings as measured with electrochemical detection. The American Journal of Clinical Nutrition, 80(2), 396-403. Dietary fat markedly raises absorption of fat-soluble carotenoids.