Using blood glucose meters to track diet ‘may cause anxiety’

The use of blood glucose meters in people without diabetes is not supported by research and could cause anxiety, experts warn.

The monitors are widely advertised as a way to personalize diets and are marketed by several companies, including as part of Professor Tim Spector's Zoe programme.

Zoe says on her website that blood sugar spikes can lead to an increased risk of heart disease over time.

The program assesses a person's blood sugar responses to food and also looks at blood fat levels and gut bacteria.

"Based on this information, we can provide personalized nutritional advice to help you ...