Lose weight: blood test can find the ideal diet

Greater weight loss through a blood test?

If you want to lose weight effectively, you may want to have a blood test done beforehand. Humans show a large variation in blood responses to the same meals, which can have a significant impact on weight loss.

A recent study by the University of Singapore and Newcastle University found that a blood test could indicate which diet contributed to the most effective weight loss. The results of the study were published in the British Medical Journal.

Mainly twins were examined for the study

For the study, more than 1,000 participants from the USA and Great Britain, who were mainly twins, were examined. The researchers wanted to find out how meals affect blood levels and whether this affects people's weight loss. It measured how blood levels of sugar, insulin, and fat changed in response to certain meals. Data were also collected on the time of meal, sleep, intestinal bacteria and physical activity.

Twins reacted differently to the same meals

The results show a wide variation in blood responses to the same meals, regardless of whether they contained carbohydrates or fat. Even identical twins, who are known to share the same genes, reacted differently to the same foods.

Adapted nutritional approaches for optimal weight loss

The study makes it clear that a diet tailored to individual people, which takes into account, for example, the blood values, family history and patient medical records, leads to the best results in weight loss. Eating, which helps you optimally with weight loss, could not lead to comparable results in other people, the researchers report. Because people react differently to food.

More research is needed

A personalized diet for weight loss appears to be promising, but much more research is needed before a personalized diet can really deliver the expected benefits. The results of a blood test can be very revealing when it comes to making suggestions for optimal nutrition for the individual. Further research must now provide evidence that the concept of personalized nutrition is scientifically credible, the authors add. (as)

Author and source information

This text corresponds to the requirements of the medical literature, medical guidelines and current studies and has been checked by medical doctors.


  • Jose M Ordovas, Lynnette R Ferguson, E Shyong Tai, John C Mathers: Personalized nutrition and health, in British Medical Journal (query: 04.09.2019), British Medical Journal

Video: What is the best diet for humans? Eran Segal. TEDxRuppin (November 2021).