There is a researcher at The Harvard Medical School named David Ludwig who's done a terrific series of studies on the glycemic index and found how it relates to food intake, body weight regulation, and health.

在哈佛医学院有一个研究员,名叫大卫·路德维格,他在血糖指数方面,做了一系列出色的研究,并发现了血糖指数与食物摄取,体重控制以及健康之间的关系

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Our knowledge about how nanomaterial food additives react in the body and their health impact is still in its infancy.

CNN: Study the use of nanoparticles in food

They did, though, give a warm response to N-acetyl-cysteine - an amino acid supplement sold in health food stores, thought to work by increasing the body's ability to mop up destructive chemicals which build up in the liver as enzymes break down ethanol.

BBC: News | HEALTH | How to beat holiday hangovers

By controlling for individual and environmental influences on weight, such as income and health, they then measure whether food-price changes affect body-mass index (BMI).

ECONOMIST: Does a tax on junk food make sense?