Keto diet consists of high fats, moderate protein and very low carbohydrates (55-60% fat, 30-35% protein, 5-10% carbohydrate). To achieve such a low carbohydrate intake, keto dieters usually consume no breads, grains or cereals. Even fruits and vegetables are to be restricted because they too contain carbohydrates. It places our body in a false fasting state, in which the body is deprived of the primary energy source (i.e. carbohydrate), leading to metabolic changes to avoid new fat storage and to increase breakdown of body fat[
A plant-based diet or a plant-rich diet is a diet consisting mostly or entirely of plant-based foods. Plant-based foods are foods derived from plants (including vegetables, grains, nuts, seeds, legumes, and fruits) with no animal-source foods. While a plant-based diet avoids or has limited animal products, it is not necessarily vegan. The Academy of Nutrition and Dietetics states that well-planned plant-based diets support health and are appropriate throughout all life stages, including pregnancy, lactation, childhood, and adulthood, as well as for athletes.
The use of the phrase "plant-based diet" has changed over time and examples can be found of the phrase being used to refer to vegan diets (which only include plant-based food, none from animal sources), and vegetarian diets, which may include dairy or eggs but no meat, as well as diets that include limited amounts of animal-based foods, such as semi-vegetarian diets.