Most alcohol contains carbohydrates, and it is advised to restrict your intake of beer, wine and mixed alcoholic drinks. Spirits such as vodka and whisky should be consumed ‘neat’ or ‘on the rocks’, and in moderation. Find more information in our post Can I drink Alcohol on Keto?

Symptoms may include headaches, foggy brain, fatigue, irritability, nausea, difficulty sleeping, and constipation. The keto diet generally limits carbs to less than 50 grams of net carbs a day, so this drastic overall reduction in carbs can shock the body into feeling the “keto flu.” These withdrawal symptoms are similar to those that you experience when giving up caffeine or another addictive substance. Find more information in our post What is Keto Flu?