It is possible to determine from an individual’s genes what food and drink he or she is actually metabolizing. This enables us to say what foods are fattening for that person and what will help him or her to slim. This diet is specific to the individual. One person loses weight from eating potatoes while another puts it on.
We can also tell from looking at an individual’s genetic nutritional profile which foods are a health hazard and which are beneficial.
For example, tomatoes may ward off cancer in one person but be carcinogenic to another; it all depends on the genes. The same applies to the consumption of meat; it can make you sick, but also healthy.
Many foods have health benefits while at the same time also leading to disease. Genetic predisposition decides the direction they will take.