Many people experience what is known as the "keto flu" when they start the diet. It includes symptoms like fatigue, headache, nausea, dizziness, and irritability. This occurs as the body adjusts to using ketones for energy instead of carbohydrates.
Some individuals may experience an increase in LDL cholesterol, which is often referred to as "bad" cholesterol. However, the impact on cardiovascular health is still a topic of debate among experts.
High-carb foods are often more filling and can help control appetite. On the keto diet, people may experience increased hunger and cravings, making it challenging to stick with the plan.
In the initial stages of the keto diet, some people may experience muscle loss due to reduced glycogen stores. This can affect athletic performance.
The diet's high intake of animal protein can increase the risk of kidney stones in susceptible individuals.
In rare cases, a high intake of saturated fats may put additional stress on the liver and worsen preexisting liver conditions.
Some people on the keto diet report "keto breath," which is often described as a fruity or acetone-like odor. It's caused by the production of acetone, a type of ketone.
The strict limitations on carbohydrate intake can make it challenging to dine out and socialize, which may lead to feelings of isolation and difficulty adhering to the diet.