Diets we support › Carnivore

How it works

You eat animal foods and nothing else: beef, pork, poultry, fish, eggs, and, for some people, cheese and butter, with no vegetables, fruit, grains, or sugar at all. Because it's so limited, a structured plan really earns its keep by keeping some variety and making sure you're getting enough.

Who it's a good fit for

People who want a strict elimination approach and have decided, ideally with their provider, that an all-animal pattern is right for them.

What the research shows

Carnivore is the hardest one to pin down, because formal research hasn't caught up to it. There aren't large, long-term trials, so most of the case rests on metabolic science, clinical experience, and the results people see for themselves. It has real advocates, including credentialed physicians and metabolic researchers, who argue that for some people, especially those with stubborn autoimmune or metabolic issues, stripping the diet down to animal foods calms symptoms that nothing else touched.

What's clear is that cutting all carbs and processed food tends to bring real short-term changes: weight loss, steadier blood sugar, and fewer cravings. Some people use it as a strict elimination diet and feel dramatically better. The honest limit is time. We don't have long-term studies showing how it plays out over years, so it's an approach to go into thoughtfully and with your labs watched, rather than one with decades of data behind it.

What to watch for

The biggest talking point is cholesterol. On an all-meat diet, LDL often rises, and mainstream guidance reads a higher LDL as higher heart risk, plain and simple. The fuller picture is more nuanced. Most of your cholesterol is made by your body, not eaten, so food moves it less than people think. And the raw LDL number is a crude measure. What seems to matter more is the type of particle and whether it's getting oxidized, which tracks with inflammation and your overall metabolic health more than with the total on a lab slip. So a higher LDL in someone who's otherwise metabolically healthy and eating very low carb can mean something different from the same number in someone else. It's a real and unsettled debate. Either way, the sensible move is to check your bloodwork before you start and keep an eye on it, ideally with a provider who understands this approach. The one real exception is a genetic cholesterol condition, where the numbers do need closer watching.

A couple of other things. People worry about digestion on carnivore, but the constipation you hear about usually comes from eating too lean. With enough fat in the mix, most people don't run into it. Cutting out plants does drop some nutrients that come mostly from them, like vitamin C and folate, though how much that matters on a very-low-carb diet is itself debated. Two conditions are a hard no, though. If you have kidney disease, an all-meat diet puts far too much load on kidneys that are already struggling. And if you have gout, carnivore is about the highest-purine way you could possibly eat, which sets off flares. For either one, this isn't your diet, and we'd point you to a plan that fits instead.

Common questions