What separates the major diet frameworks
Popular diets differ mainly in which foods they restrict and the mechanism they lean on. Keto and carnivore minimize carbohydrate to shift fuel toward fat and ketones. Paleo and Whole30 exclude grains, legumes, dairy, and processed foods, focusing on whole-food selection. Mediterranean and DASH are inclusive, emphasizing vegetables, whole grains, legumes, fish, and olive oil, with DASH adding sodium control for blood pressure. Vegan removes all animal products and centers plant foods.
Despite different rules, most produce weight loss largely by reducing processed-food intake and total calories, not through a unique metabolic trick.
Matching a framework to a goal and a person
Target outcomes vary: DASH and Mediterranean have the strongest evidence for cardiovascular and blood-pressure benefit; lower-carb patterns can help glycemic control for some; plant-forward patterns are linked with fiber and longevity-associated markers. Adherence and personal preference usually predict success more than the specific framework. Each pattern also has its own nutrient watch-points (for example B12 on vegan, fiber on carnivore).
This is general educational information, not medical advice. The right pattern depends on individual health status, and a qualified professional should guide choices, especially with an existing condition.