AUSTIN, Texas, Rabi'I 14, 1437, December 25, 2015, SPA -- Scientists at the University of Texas predict in a new study that within five years doctors will design diets based on individual patients' genes, UPI reported. While they say five years, the researchers said better analytical tools will need to be created in order to quickly understand the relationship between genetics, behavior, and weight-related diseases. The potential that several genes are involved with weight gain, loss, and regain also poses a challenge, they said. While a gene has been found that causes energy from food to be stored as fat instead of burned for energy, variations in the gene and how it interacts with other genes can vary from person to person. Researchers in the study, published in the journal Obesity, analyzed genetic tests, genomic research, and research on weight change. They found that while some genes related to weight have been identified, there's a lack of understanding on how they actually effect weight. --SPA 01:22 LOCAL TIME 22:22 GMT www.spa.gov.sa/w