The paleo and keto diet are both popular weight-loss diets that have food restrictions and rules. However, their approach is a bit different.  Both diets exclude grains, legumes, and sugar, and encourage whole foods. But the paleo diet focuses more on the types of food you eat, while the keto diet places more emphasis on the macronutrient content of your diet; emphasizing fats and protein and severely restricting carbohydrates. There’s no calorie-counting or portion-size limits on the paleo diet. It's strictly a matter of eating compliant foods and avoiding noncompliant ones. However, for the keto diet you need to measure, count, and track the carbohydrate content in all the food you eat.