The Whole30 diet was created and popularized by sports nutritionists Dallas and Melissa Hartwig in their 2015 book.
This 30-day diet is described as a “short-term nutritional reset”. It is a high-protein, low-carb diet similar to other ketogenic diets. It emphasizes whole foods in their natural states when possible.
The 30-day program restricts sweeteners (natural and artificial), additives, alcohol, grains (including whole grains), legumes, some seed oils and dairy. Allowed are meat, seafood and eggs, nuts and seeds, vegetables and fruit.