Personalized nutrition and the risks of social media diets

Influencer Viih Tube has shared her experience using personalized weight loss methods involving genetic and intestinal microbiota testing. Through the Brazilian healthtech WeFit, the process involves collecting samples at home—such as a DNA swab from the mouth—which are then analyzed by professionals to tailor nutritional strategies to an individual's biological characteristics.

While such personalized approaches aim to integrate DNA and gut health into dietary planning, nutrition experts warn against the dangers of following general diets promoted on social media. Nutritionist Gredany Palheta cautions that replicating an influencer's diet without professional guidance can lead to nutrient deficiencies, muscle loss, and fatigue. Experts emphasize that dietary needs are highly individual, depending on age, physical activity, clinical conditions, and metabolic history, rather than universal rules found online.