Ketogenic Diet May Up Type 2 Diabetes Risk

by Adeline Dorcas on  August 9, 2018 at 11:08 AM Diet & Nutrition News
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Low carbohydrate, high-fat ketogenic diets that are considered to be healthy for weight loss may increase the risk of developing Type 2 diabetes, reports a new study. The findings of the study are published in the Journal of Physiology.
Ketogenic Diet May Up Type 2 Diabetes Risk
Ketogenic Diet May Up Type 2 Diabetes Risk

Type 2 diabetes is one of the most pressing challenges of our time, and its ultimate cause has not been fully understood. Ketogenic diets, which are low in carbohydrate and high in fat, are known to lead to weight loss and have been considered to be healthy. These findings raise new questions about ketogenic diets and whether or not they are actually healthy.

Insulin is released into the blood and used to control blood sugar levels including signaling the liver to stop producing sugar. If this system is impaired and the body does not use insulin properly, which is called insulin resistance, individuals are likely to develop high blood sugar levels.

In this study, the researchers showed that for ketogenic diets this process for controlling blood sugar levels does not work properly and there was insulin resistance in the liver. When the liver is unable to respond to normal levels of insulin to control blood sugar levels, this may lead to an increased risk of Type 2 diabetes.

The study, which was conducted by ETH Zurich in conjunction with University Children's Hospital Zurich, involved feeding mice two different types of diet (a ketogenic diet and a high-fat diet, which causes the liver to become resistant to insulin) and then performing standard metabolic tests on them. Using specialized procedures the researchers were able to determine the effects of internal sugar production from the animal (mostly the liver), and sugar uptake into tissues (mostly the muscle), during insulin action.

It is important to note that the research did not analyze whether the diet employed causes obesity if given long-term. The mechanism behind the whole process was undetermined; therefore, the existence of a shared physiological response between low carb and regular carb high-fat diets that cause insulin resistance in the liver requires further exploration.

Christian Wolfrum, one of the corresponding authors of the paper said 'Diabetes is one of the biggest health issues we face. Although ketogenic diets are known to be healthy, our findings indicate that there may be an increased risk of insulin resistance with this type of diet that may lead to Type 2 diabetes.

The next step is to try to identify the mechanism for this effect and to address whether this is a physiological adaptation. We hypothesize that when fatty acids are metabolized, their products might have important signaling roles to play in the brain.'

Source: Eurekalert

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