Is it harmful to cook or store food in aluminum foil?
We do not recommend cooking or storing food in aluminum foil-even though there is no strong scientific evidence showing these practices to be harmful to your health. We have three reasons for making this recommendation. First, even though research studies don't show the food use of aluminum foil to be harmful, they clearly show migration of small amounts of aluminum from the foil into the food. For example, in one study conducted in Italy about 2-6 milligrams of aluminum was found to move over into food from aluminum foils, cookware, and utensils. Even if this amount has not been show to pose health harm, we don't like our food containing a potentially problematic metal that wasn't naturally supposed to be there.
Second, we believe that the jury is still out on aluminum with respect to chronic long-term health problems. (We're talking here about exposure to aluminum from all sources, including the environment, certain workplace settings, personal care products, etc.) Potential connections have been found between certain cancers and aluminum exposure, and also between aluminum exposure and Alzheimer's disease. Infertility connections have also been found. We don't see any reason to add potential exposure through the use of aluminum foil with food.
Finally, we don't like the consequences of aluminum foil manufacturing for our planet. Aluminum remains on the federal government's list of priority toxins for the United States, and its mining, manufacture, and post-use disposal pose significant problems for our environment. From our perspective, while aluminum foil is definitely lightweight, flexible, and convenient, these upsides don't come close to outweighing the downsides here.
Finally, we don't like the consequences of aluminum foil manufacturing for our planet. Aluminum remains on the federal government's list of priority toxins for the United States, and its mining, manufacture, and post-use disposal pose significant problems for our environment. From our perspective, while aluminum foil is definitely lightweight, flexible, and convenient, these upsides don't come close to outweighing the downsides here.
References
- Gramiccioni L, Ingrao G, Milana MR, et al. Aluminium levels in Italian diets and in selected foods from aluminium utensils. Food Additives and Contaminants. 1996; 13(7):767-774. 1996.
- Lopez FE, Cabrera C, Lorenzo ML, et al. Aluminum levels in convenience and fast foods: in vitro study of the absorbable fraction. Sci Total Environ 2002;300(1-3):69-79. 2002.
- Nayak P. Aluminum: impacts and disease. Environ Res 2002;89(2):101-15. 2002.
- Pratico D, Uryu K, Sung S, et al. Aluminum modulates brain amyloidosis through oxidative stress in APP transgenic mice. FASEB J 2002;16(9):1138-40. 2002.
- Rondeau V. A review of epidemiologic studies on aluminum and silica in relation to Alzheimer's disease and associated disorders. Rev Environ Health 2002;17(2):107-21. 2002.
- Soni MG, White SM, Flamm WG, et al. Safety evaluation of dietary aluminum. Regul Toxicol Pharmacol 2001;33(1):66-79. 2001.
- Sugita T, Ishiwata H, Yoshihira K. [Migration of heavy metals into food-simulating solvents from aluminum pans]. Eisei Shikenjo Hokoku 1988;(106):124-6. 1988.
