insider@insider.com (Madeline Kennedy,Samantha Cassetty,Katie Walsh)
The ketogenic diet – keto for short – is a restrictive diet where you replace carbs with fatty foods. For example, carb-rich foods like bread, rice, and potatoes are usually eliminated, or severely reduced, because they’ll easily tip you over the limit of 20-50 grams of carbs per day. Meanwhile, low-carb fatty foods, protein, and non-starchy veggies are prioritized.
There’s some variation of the keto diet, so there is some wiggle room for catering it to your particular lifestyle and eating preferences. Here are six different types of the ketogenic diet:
- Standard keto: The standard keto diet essentially means that a person limits their carb consumption to 20-50 grams and hits 40-60 grams of protein daily. This generally also discourages junk food even if it technically fits within these parameters.
- Dirty keto: The dirty keto diet means that you stick to a low-carb diet – less than 50 grams per day. However, there are no other parameters outside of that. Controversially, this diet technically allows you to eat as much fast food as you can – hence the name “dirty keto” – as long as you remain under that 50-gram limit.
- Speed keto: Speed keto, named for its purported speedy results, is a combo of two diet archetypes: It takes keto and adds the time restriction of intermittent fasting. There isn’t yet evidence that this is effective in the long term due to the highly restrictive nature of both of these diets.
- Vegetarian/vegan keto: As the title of this type of keto diet suggests, the vegan keto diet places emphasis on plant-based, low-carb, high-protein foods. Think peanut butter, tempeh, tofu, and pumpkin seeds. For the vegetarian version of keto, eggs and cheese are still very much fair game. Many vegan diets do rely on healthy complex carbs, which narrows the available food groups for those on this diet.
- Targeted keto diet: This version of keto is usually designed for athletes who need more carbs due to intense exercise. Therefore, you’re encouraged to eat more carbohydrates before an intense workout to ensure optimal performance.
- Cyclical keto diet: Keto, due to its restrictive nature, can be hard to stick to. That’s where cycling keto comes in. Cycling allows you to have a day or more each week (there are no strict guidelines) where you eat more than 50 grams of carbs to make the diet more sustainable.





