Feeding hungry genes

日期:2019-03-02 07:16:04 作者:娄筠挑 阅读:

By Bijal Trivedi IT SOUNDS like the ultimate in personalised medicine: a tailor-made diet that controls your weight, optimises your health and reduces your risk of heart disease, cancer and diabetes. All you have to do to get one is hand over a couple of hundred dollars, take a simple genetic test, and wait for a personalised nutrition plan based on your genes to drop through your door. Diet plans like this are widely available from private clinics, over the internet and, in the US, even in some supermarkets. Advocates claim they take the uncertainty out of grocery shopping and provide a guaranteed route to long-term health and fitness. Critics say the tests are at best misleading and at worst potentially harmful. I was simply curious. With my family history of heart disease, I wanted to know whether a diet tailored to my DNA could help me override my genes. In theory, yes. All other things being equal, genetics is the reason why one person can eat a poor diet without serious health repercussions while in another person the same diet leads to high blood pressure, cancer or heart disease. This is the basis of nutrigenomics – the science of how the chemicals in food alter the regulation of genes and proteins, and how variations in certain genes might predispose people to troublesome gene-nutrient interactions and ultimately disease. Nutrigenomics is a relatively new science with genuine promise, but it has yet to yield many results of practical value. Even so,