Most keto diet plans recommend that people consume 20–50 grams (g) of carbs per day. Meals and drinks must fit within this daily allowance.
There is no one version of the keto diet. Some may recommend avoiding alcohol altogether due to its carb content.
Not all alcohol contains the same amount of carbs, however. Beer and drinks with a lot of sugar contain the highest amount, while spirits contain none.
Some people might choose to have an alcoholic drink if it fits within their daily allowance, while others may decide to avoid it altogether.
Another thing to remember is that the body may use energy from alcohol before using ketones from body fat. This could potentially limit the effect of the diet.
People following a keto diet to treat a medical condition, such as diabetes or epilepsy, should avoid alcohol.
The aim of the keto diet is for the body to be in a state of ketosis. Maintaining this state relies on following very specific dietary guidelines. If a person does not strictly follow these guidelines, the diet may not be effective.
Following the keto diet often requires a lot of willpower. Alcohol can affect decision making and could mean making the choice to eat or drink something that is not within the diet plan. A person may therefore choose to avoid alcohol if they think that it might cause them to break their diet.
If a person eats a meal containing a lot of carbs before drinking, it could reduce the effects of the alcohol. In contrast, those following a keto diet may feel drunk more quickly because they have not eaten carbs to absorb some of the alcohol.
Drinking alcohol carries some health risks. Guidance recommends drinking in moderation, which is up to two drinks per day for men and one for women.