Keto Diet Study Reveals Potential Health Risks

New research highlights increased cholesterol and reduced gut bacteria in those on a ketogenic diet.

A recent study conducted by a team of health and nutrition experts from the University of Bath, in collaboration with several other institutions, has revealed some concerning side effects of the ketogenic (keto) diet. The study found that people following a keto diet experienced an increase in LDL (bad) cholesterol, higher levels of apolipoprotein B, and a reduction in certain beneficial gut bacteria.

What is the Keto Diet?

The ketogenic diet is a low-carbohydrate, high-fat diet. It involves drastically cutting down on carbs and replacing them with fats from foods like meat, dairy, cheese, eggs, and avocados. While previous research has shown that this diet can lead to weight loss, it has also raised concerns about potential health risks, such as nutritional deficiencies, digestive issues, kidney stones, and bone problems over time.

The Study and Its Findings

To explore these potential risks, the researchers conducted a randomized controlled trial. They recruited 53 non-obese adults and divided them into three groups: one group followed the ketogenic diet, another group followed a low-sugar diet, and the final group maintained a moderate diet as a control.

After one month, the results were clear:

Weight Loss: Those on the keto diet lost an average of 1.6 kg of fat. The low-sugar group lost an average of 1 kg of fat.
Cholesterol Levels: The keto group had 16% higher levels of LDL cholesterol compared to the control group, while the low-sugar group had 10% lower LDL cholesterol levels.
Apolipoprotein B Levels: The keto group had 26% higher levels of apolipoprotein B, a protein associated with artery clogging. There was no change in apolipoprotein B levels in the low-sugar group.
Gut Bacteria: Those on the keto diet showed reduced levels of gut bacteria that are important for a strong immune system and vitamin B production.

This study sheds light on some of the potential risks associated with the ketogenic diet, particularly concerning cholesterol levels and gut health. While the diet may be effective for short-term weight loss, it’s important to consider the possible long-term health implications. If you’re considering the keto diet, it’s advisable to consult with a healthcare professional to ensure it’s appropriate for your health needs.