The carnivore diet, as simple as it is, is a primal diet that our ancestors ate and one of the most stable diets in existence. Plants are filled with inflammatory and anti-nutrient properties that play a huge role as to why everyone in modern society is so sick all the time.
Approaches to Eating Carnivore
There are two methods of approaching the Carnivore diet, and both of them have target audiences that may or may not be fit for you.
Going "elimination" style Carnivore is quite simple. Only consume beef, lamb, salt, and water for thirty days. After that, add other animal products and go on two-day "test" periods to see if your body negatively reacts to them. Later, you can add plant products as well to see if your body negatively reacts to them. If you suffer from chronic autoimmune conditions or seem to be hypersensitive to food products, then going elimination is the best course for you.
Standard carnivorism is about improving your general well-being and does not need to be as restrictive as the elimination style, where the goal is to eat the least allergenic foods in existence (ruminant meats). Just eat animal flesh, organs, and products only (except honey.) In addition, avoid eating pasteurized dairy altogether and give a thirty day waiting period before testing out if your body reacts to raw milk, cheese, or cream. (Seriously, don't consume dairy until you know how it affects your body. I ignored this step and had terrible constipation until I removed it from my diet.) Eating standard carnivorism is a good idea if you're looking for general improvements in health, weight gain/loss, and feeling more energized.
Even if you think you are healthy, I highly suggest you give just a week of carnivorism a chance. You will be surprised at how sleepy and lethargic you feel when you go back to a "normal" diet.
RUMINANT MEATS - beef, lamb, goats, and the flesh of ruminant animals if you enjoy hunting.
Ruminant meats are the only foods that are a requirement in this way of eating. They are chocked full of nutrients, have good fat to protein ratios, and are extremely satiating. If the cuts of these meats are safe to eat after the edges are seared, try to avoid cooking them past medium-rare to get more benefits out of the nutrient content of these foods.
When it comes to the type of ruminant meat you eat, it really doesn't matter what type you eat - so just pick what's more readily available to you.
ORGANS - the liver, hearts, kidneys, brains, of any animal
Organs are not absolutely necessary in this diet, but they are the most nutrient-dense foods in the world and are filled with practically every nutrient key to human survival, especially liver. If you take a look at wild carnivores, they often fish for the organs before consuming the flesh because organs are the most nutrient-dense parts of the animals.
Organs taste very strong and can be unpalatable to us - but they are rich in essential nutrients. The most common and potent organ is the liver, which I recommend if you don't have experience eating less common organ meats. That's why I'd suggest eating calf liver if it's available to you. The taste is milder than the extremely strong taste and the smell of beef liver, which is tough to get used to unless you were raised eating it. Other common options are chicken liver, pork liver, canned cod liver.
FISH - salmon, shrimp, tuna, and others
Fish are in general richer in healthy omega-3 fatty acids than other meats and are rich in vitamins. Don't rely solely on fish as a nutrient source, as most have a low fat to protein ratio which will leave you unsatiated.
OTHER MEATS - pork, chicken, turkey, and others
These meats are optional, and you won't miss out if you miss out on them but they're completely fine if you enjoy their taste. Unlike ruminant meats, these meats are generally less safe to eat when undercooked. In particular, chicken is not safe to eat raw as bacteria can penetrate the flesh much further than in ruminant meats. These should only be saved for the occasional meal, as these foods are not as satiating as ruminant meats.
These meats can be delicious, especially bacon. If you're on a strict diet, however, I'd wait to put these in as these meats can sometimes cause sensitive people to react to them.
ANIMAL PRODUCTS - eggs and dairy
These foods are great for putting on muscle mass. However, lots of people have sensitivities to these foods, so I'd proceed with caution before adding these to your diet.
Don't consume pasteurized dairy, as it destroys most of the beneficial nutrients in them, leaving you with empty carbs. However, if raw dairy is illegal where you live, opt for pasteurized cream and butter as pasteurization is less harmful to the nutrients found in these substances. Consider cooking with non-hydrogenated lard or beef tallow if butter makes you sensitive.