> A fad diet is a diet that is popular, generally only for a short time, similar to fads in fashion, without being a standard dietary recommendation, and often making pseudoscientific or unreasonable claims for fast weight loss or health improvements.
> The carnivore diet (also called a zero carb diet) is a fad diet
> There is no clinical evidence that the carnivore diet provides any health benefits.[2][12][13] Dietitians dismiss the carnivore diet as an extreme fad diet