Some nutrients can also act to protect the genome from damage. DNA continues to replicate itself, and the thousands of mistakes made every day as a result. If the error is not corrected, the genome will eventually be irreparably damaged, and we will develop the disease or death.

One variant gene is well established, for example, angiotensin occurs in the gene, called ANG. One variation in the ANG raises a person's risk of high blood stress. To know about angiotensin read this article

This gene modification occurs most frequently in African Americans. Persons with this gene modification can control high blood stress with a low-salt diet.

About 72% of African Americans are salt delicate and will be assisted by the diet. Many people of European descent have the same variations in the same gene. People will also be assisted by a low-salt diet. But the same diet will not help people with high blood pressure due to other causes.

Some people, for example, need foods rich in calcium to lower blood pressure. If doctors know someone has an ANG variant, it may be better to treat high blood pressure.

Nutrigenomics researchers are trying to identify the genes that cause this reaction to a particular diet. If they succeed, they will be able to warn people who are vulnerable and recommend the appropriate diet for preventing chronic diseases caused by the interaction of genes and diet savers.

This will help to reduce some of the health inequalities between ethnic groups.

Genes, nutrition, and lifestyle (exercise, smoking, environmental pollution) determine how well the repairs take place and how much damage occurs. nutrigenomics scientists suspect that damage is not effectively repaired cells is the cause of many diseases, such as cancer.