A keto meal is one that contains under 50 g of total carbs or contributes about 30 g of net carbs per day. Net carbs are total carbs minus the fiber.
Fiber is present in plants and is important to include in a keto diet because fiber protects gut bacteria, improves digestive function, and helps prevent constipation.
In the keto diet, the majority of daily calories come from fats, while lesser amounts come from proteins. Meat, fish, eggs, and dairy feature heavily in the keto diet.
When the body cannot rely on carbohydrates for energy, it must burn fat for fuel. This results in a buildup of acids called ketones in the body. This results in a bodily state of ketosis.
Also, a 2012 review of 23 studies indicates that a low carbohydrate diet, such as the keto diet, could lower some of the primary risk factors for heart disease, including high blood pressure, low-density lipoprotein cholesterol, and triglycerides.
Many people follow a keto plan for a set amount of time before altering the diet to include more carbohydrates and less fat.
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