Keto Buzz "Metabolically I’m not quite sure what causes it," Teresa Fung, a professor at Simmons College and a clinical nutritionist, told Popular Science. An Keto Buzz yone following a keto diet means they must limit their carb intake to about 20 net grams of carbs or less each day. The standard recommendation is between 225 and 325 grams per day. The diet also encourages a heavy fat intake, and a big cause of dietary inflammation is saturated fat, like what's found in beef, cream and butter. These types of food are promoted as healthy on the keto diet, yet they're actually inflammatory nutrients. “We haven’t really got long-term safety established for these diets," says Roberts, a U.S. News Best Diets expert