DNA testing companies can interpret the data from the same sample differently because they use different SNPs to come to their conclusions.

Some might tell you how you will be able to lose weight, or how your diet will affect you. They can also make automatic recommendations to suit your di...

Although people buy genetic testing kits from companies to find out how to lose weight, the companies themselves acknowledge the limitations of the science and are careful to word their claims so that they don't outright promise weight loss.

Some researchers think that companies are overrea...

With some genetic testing products, you can view your results on a particular screen on the app. There are 19 results in total, with five relating specifically to weight loss.

Among other things, you can, for instance, learn about your Vitamin and mineral levels or exercise abilities....

Genetics alone cannot explain why some people are fat and others thin. Other factors include what you do and what happens to you. What can be revealed with known genes is in the single digits.

• One 2015 study of 97 gene...

Scientists are continually finding links between genetics and nutrition. Many of us have a gene called FTO that makes us more likely to be overweight. You can get a genetic test to tell which variant of the FTO gene you happen to have.

However, scientists who study the genetics of nutrition...

Your results can be a gateway to healthier habits. The recommendations are harmless in the sense that they are recommendations that any dietician would make anyway.