Research is under way to see if this diet can ameliorate symptoms of other neurological disorders like Alzheimer's disease and mental health conditions like depression, schizophrenia and bipolar disorder.

For instance, while shrimp and most crabs contain no carbs, other types of shellfish do . This common side effect usually passes after 3–4 weeks.

Wholegrain products are also full of carbohydrates, and thus not part of a keto diet. Younger, fit people who exercise a lot may be able to tolerate quite a lot of protein.

However, some fruits are low in carbs and can fit into a well-rounded keto diet. The popularity of avocados has increased over recent years with many considering it a superfood alongside kale.

However, some fruits are low in carbs and can fit into a well-rounded keto diet. The popularity of avocados has increased over recent years with many considering it a superfood alongside kale.