[9][10] In the 1880s, James H. Salisbury advocated a meat diet consisting of 2 to 4 pounds of lean beef and 3 to 5 pints of hot water daily for 4 to 12 weeks.
[13][14][15] The 'lion diet', which became a viral fad on TikTok,[16][17] is described by experts as "being potentially very unhealthy, is difficult to follow and unsustainable in the long term".
[2] Because of its high cost Novella described the diet as one for "select elites", adding what he said was a further unsavory aspect to its harmful and pseudoscientific basis.
[19] People following a carnivore diet consume high-protein animal-based products, such as beef, pork, poultry, and seafood.
[4] While carnivore diets exclude fruits and vegetables which supply micronutrients, they are also low in dietary fiber, possibly causing constipation.