Carnivore Diet: Weight Loss, Food List, All Meat Risks (2024)

The carnivore diet is a fad diet focused on consuming only animal products and byproducts (e.g., dairy), resulting in fewer blood sugar spikes. In a study of this diet, participants reported seeing improvements in overall health, well-being, certain medical conditions, and average body mass index (BMI).

However, a diet primarily comprised of meat and animal-based foods comes with risks. These foods are high in saturated fat, which can raise your low-density lipoprotein (LDL) or "bad" cholesterol and increase your risk of heart attack or stroke. Consuming only animal and animal byproducts limits your intake of essential nutrients, especially vitamins, minerals, and fiber for your overall health.

In this article, you will learn some of the potential benefits and risks of the carnivore diet compared to a traditional well-balanced diet.

Carnivore Diet: Weight Loss, Food List, All Meat Risks (1)

Besides Protein, What Are the Benefits of the Carnivore Diet?

There is limited research on the carnivore diet. The most significant study to date was conducted in 2021 by Harvard researchers. They interviewed 2,029 people who were on the diet for at least six months. Their reasons for adopting this diet included the following:

  • Weight loss
  • Focus and energy
  • Allergy or autoimmunity
  • Digestive health
  • Athletic performance
  • Mental health
  • Diabetes

Self-reported changes in health status included improvements in overall health, sleep, focus, energy, and mental clarity.

Participants also reported improvement in or resolution of the following chronic conditions:

  • Diabetes or insulin resistance
  • Intestinal conditions
  • High blood pressure
  • Skin or autoimmune conditions
  • Cardiovascular issues

The results of this study have one major limitation: self-reported data is unreliable. The study did not employ an independent interviewer or use health records to verify the health status of study participants.

Though many people report a substantial improvement in their health while on the carnivore diet, more rigorous studies are necessary.

What to Eat While on a Carnivore Diet

As the name suggests, a carnivore diet means eating primarily meat and animal products and avoiding all other foods. The diet's primary goal is weight loss by consuming minimal daily carbohydrates.

Compliant Foods

Noncompliant Foods

  • Fruits

  • Vegetables

  • Legumes

  • Grains

  • Nuts

  • Seeds

  • Starchy vegetables

Foods to Avoid on the Carnivore Diet

People who follow the carnivore diet avoid fruits, vegetables, nuts, seeds, and legumes. Here's why:

  • Fruits and vegetables: These foods are high in fiber, vitamins, and minerals. However, they also have a higher glycemic index (GI), significantly impacting blood sugar for those with prediabetes and diabetes. For instance, watermelon, pineapple, and potatoes have a high GI.
  • Nuts, seeds, and legumes: Almonds, hazelnuts, peanuts, sunflower seeds, pinto beans, black beans, and garbanzo beans are examples of nuts, seeds, and legumes. Compared to fruits and vegetables, these foods are high in protein and fats and low in carbohydrates.

The goal of a carnivore diet is to eat only animal products (or byproducts such as dairy) and little to no carbohydrates, so the food groups listed are not recommended.

Who Shouldn't Do a Carnivore Diet

Talk to a healthcare provider before beginning any fad diet. Many people try the carnivore diet to lose weight or improve their health. However, if you have certain chronic conditions, consider the health impact of consuming only animal products before changing your diet. People with the following conditions should avoid the carnivore diet:

  • High blood pressure (hypertension)
  • High cholesterol (hyperlipidemia)
  • Any history of cardiovascular disease
  • Obesity (a BMI of above 40) alongside other conditions (comorbidities)

Eating a great deal of meat high in saturated fat can increase bad (LDL) cholesterol, putting you at a higher risk of heart disease. Consuming too many processed foods, such as bacon, sausage, or high-sodium lunch meats, can cause kidney problems and high blood pressure.

Constipation Risk

The primary source of dietary fiber is carbohydrates, such as fruits, vegetables, and grains. The carnivore diet provides little to no fiber, increasing the risk of constipation. Fiber encourages regular bowel movements and helps create good bacteria in the gut. Quality gut health helps support a healthy immune system.

Carnivore Diet vs. Well-Balanced Diet

A carnivore diet is very restrictive because you only eat from one food group. For optimal health, consider a well-balanced diet. This means eating foods from every food group to provide complete nutrition from various sources.

A well-balanced diet includes various macro- and micronutrients, such as protein, carbohydrates, fats, fiber, vitamins, minerals, and water. The following foods contribute to a well-balanced diet:

  • Fruits, vegetables, whole grains
  • Low-fat dairy products
  • Protein from multiple sources, including lean red meats, poultry, eggs, beans, nuts, and seeds
  • Foods low in sugar, sodium, saturated fats, trans fats, and cholesterol

Summary

A carnivore diet only allows foods from animal sources. Most people who try the carnivore diet want to lose weight or manage chronic conditions. However, there is limited research on the health benefits of a carnivore diet. The carnivore diet can be risky, especially for people with high blood pressure, high cholesterol, and a history of heart disease. The lack of fiber can also cause constipation and poor gut health.

Consult a healthcare provider, such as a registered dietitian, before starting a carnivore diet. Follow a well-balanced diet to support your overall health.

8 Sources

Verywell Health uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

  1. Lennerz BS, Mey JT, Henn OH, Ludwig DS. Behavioral characteristics and self-reported health status among 2029 adults consuming a carnivore diet.Current Developments in Nutrition. 2021. doi: 10.1093/cdn/nzab133

  2. American Heart Association. Saturated fat.

  3. Kirwan R, Mallett GS, Ellis L, Flanagan A. Limitations of self-reported health status and metabolic markers among adults consuming a carnivore diet.Curr Dev Nutr. 2022;6(5):nzac037. doi:10.1093/cdn/nzac037

  4. Carnivore.diet. Carnivore diet health benefits.

  5. MedlinePlus. Glycemic index and diabetes.

  6. MedlinePlus. Protein in diet.

  7. Harvard Center for Health and the Global Environment. The carnivore diet risks and side effects.

  8. Centers for Disease Control and Prevention. Healthy eating for a healthy weight.

Carnivore Diet: Weight Loss, Food List, All Meat Risks (2)

By Carisa Brewster
Carisa D. Brewster is a freelance journalist with over 20 years of experience writing for newspapers, magazines, and digital publications. She specializes in science and healthcare content.

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Carnivore Diet: Weight Loss, Food List, All Meat Risks (2024)

FAQs

What are the risks of the all meat diet? ›

“The carnivore diet can increase the risk of disease because it is an acidic diet that is high in sodium that lacks in key nutrients responsible for optimal health,” Rydyger says. “The diet can also be high in saturated fat and LDL cholesterol.

Is a 100% carnivore diet safe? ›

It may be unsafe for some people. The carnivore diet consists entirely of meat and animal products, excluding all other foods. It's claimed to aid weight loss, mood issues, and blood sugar regulation, among other health issues. However, the diet is extremely restrictive and likely unhealthy in the long term.

What happens to your body on an all meat diet? ›

Saturated fats can cause inflammation. Additionally, a high-protein diet (such as the carnivore diet) can be harmful to the kidneys—and can even promote gout and kidney stones.

What is the best meat to eat on a carnivore diet? ›

Meat: Choose fatty cuts of ruminant grass-fed meat like ribeye and NY strip steak, 80/20 ground beef, t-bone, lamb, and goat. For pork, choose pasture-raised, and fatty cuts like pork belly. Fat: A key to remember is that your body will be using fat as its main energy source, not protein.

Is the carnivore diet bad for your heart? ›

Eating lots of meat can cause serious digestive issues, and eating lots of saturated fats, which are plentiful in the Carnivore diet, can elevate LDL cholesterol (the bad kind!) and increase risk of heart disease.

Why is red meat bad for your colon? ›

For example, when a chemical in red meat called haem is broken down in the gut, N-nitroso chemicals are formed and these have been found to damage the cells that line the bowel, which can lead to bowel cancer. These same chemicals also form when processed meat is digested.

What is the 80 20 rule for carnivore diet? ›

Some carnivore enthusiasts even go for an 80/20 carnivore diet. This means 80% fat and 20% protein — no carbs at all. This fat-to-protein ratio carnivore diet is typically for experienced people on a carnivore diet.

What are 3 disadvantages of the carnivore diet? ›

Carnivore Diet Cons. The cons of going carnivore are the lack of vitamins and minerals, it's high in fat, sodium and cholesterol and it has zero fiber.

Is the carnivore diet bad long term? ›

He said that the best available evidence suggests that a carnivore diet will increase risk of colorectal cancer and cardiovascular disease compared to many other diets. “There's no way [Baker] doesn't know that people are going to take what he says and actually implement it into their lifestyle,” Dr Nagra said.

Why did I quit the carnivore diet? ›

Not only does the carnivore diet lack science-backed benefits, butGreene says it could also pose a huge risk to your overall health if you choose to follow it. “Those following the carnivore diet are more at risk for vitamin and mineral deficiencies due to the lack of variety in the diet,” Greene says.

Can I drink coffee on a carnivore diet? ›

Yes, you can drink coffee on a carnivore diet. Despite its plant origin, many followers of the carnivore diet still consume coffee, considering caffeine's stimulating properties. However, caution must be taken as excessive intake of caffeine may add stress to the body's metabolism and disrupt sleep patterns.

Why am I not losing weight on a carnivore diet? ›

It could be as simple as time - you haven't been on the diet long enough. Or, maybe you're still in caloric surplus despite eating the right foods. It could even be that you're not drinking enough water, you're constipated from the new diet, you're stressed out - or some other unrelated cause.

How many eggs a day on carnivore diet? ›

More eggs can support muscle gain, while fewer may be better for weight loss. You can also consider just consuming egg whites to lower your calorie and fat intake. In general, though, many on the carnivore diet consume between 2 to 6 eggs daily as part of their meal plan.

What is Joe Rogan's carnivore diet? ›

Joe Rogan's daily intake, while on the Carnivore Diet, primarily consisted of meat. He often mentioned consuming elk, bison, and other game meats, along with more traditional meats like beef. Organ meats, particularly liver, were also a part of his diet.

What is a Tier 1 carnivore diet? ›

A Tier 1 carnivore-ish diet emphasizes animal food consumption as the majority of the diet, but it allows some room for the least toxic plant foods, including non-sweet fruits, squash, avocados, cucumbers (without skin or seeds), olives, and seasonal berries.

What are the benefits and risks of eating a meat free diet? ›

Following a vegetarian diet may reduce the risk of heart disease, diabetes and some cancers. But some vegetarian diets may rely too heavily on processed foods with too many calories, and too much sugar, fat and salt. These diets may not include enough fruits, vegetables, whole grains and nutrient-rich foods.

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