Almost the opposite of vegan, yet effective for weight loss too, the carnivore diet recommends consumption of animal products only. This diet is a bit too restrictive but can be enjoyable for those who like to eat red meat, whole eggs, chicken, and low-lactose dairy. It restricts all other carbs, including fruits and vegetables.
Apart from weight loss, this diet also claims to improve insulin sensitivity and reduce inflammation.
Since this diet is low in fiber, you may have digestive issues like constipation. If you have a pre-existing condition, like high blood pressure, high cholesterol, stroke or other cardiovascular diseases, you should not try this diet.