Effect of Dietary Restrictions and Ketogenic Diet on Mitochondrial Function and Gut Microbiota in Subjects With Obesity

Weekly menus will be delivered according to diet with the following macronutrient distribution: 25% protein, 10% carbohydrate, 65% fat. Participants will receive a 30-day food menu guide.

Weekly menus will be provided according to their usual diet with 500 kcal restriction with the following macronutrient distribution 25-35% protein, 45-55% carbohydrates, 20-30% fat. Participants will receive a 30-day food menu guide.

Calorie-restricted menus will be provided with a 16:8 time-restricted feeding. The feeding window will be 8 hours with a fasting time of 16 hours (04.00 pm- 08.00 am or 05.00 pm - 09.00 am), during the fasting window participants will only be allowed to drink water, unsweetened tea, mineral water and coffee without added sugar. Participants will receive a 30-day food menu guide.