Low Carb vs Carnivore Diet: A Comprehensive Comparison

When it comes to dietary choices, the landscape is vast and varied. Two popular diets that have garnered attention in recent years are the low-carb diet and the carnivore diet. Both have their unique benefits and potential drawbacks, and understanding these can help you make an informed decision about which is best for your health and lifestyle.

Understanding the Low Carb Diet

The low-carb diet is a broad term that encompasses several dietary plans, including the ketogenic (keto) diet, Atkins diet, and more. The primary principle of a low-carb diet is to limit the intake of carbohydrates while increasing the consumption of proteins and fats. The goal is to shift the body’s metabolism from burning glucose (derived from carbs) for energy to burning stored fat, a state known as ketosis 1.

A well-formulated low-carb diet includes foods like lean meats, fish, eggs, vegetables, and healthy fats. It restricts high-carb foods like grains, starchy vegetables, and fruits. The macronutrient ratio in a low-carb diet typically breaks down to around 70-80% of calories from fat, 15-30% from protein, and 0-10% from carbohydrates 2.

low carb macro breakdown

Read more: The Comprehensive Guide to Low Carb Diets

Understanding the Carnivore Diet

The carnivore diet, as the name suggests, involves consuming only animal products. This diet is an extreme form of a low-carb diet, where the intake of carbohydrates is almost non-existent. The carnivore diet includes meat (preferably fatty meat), fish, eggs, and sometimes dairy. It excludes all plant-based foods, including fruits, vegetables, legumes, grains, nuts, and seeds 3.

The carnivore diet is based on the belief that human ancestors primarily consumed meat and fish and that our bodies are designed to follow this diet. It’s important to note that the carnivore diet is not just about consuming muscle meat. It also encourages the consumption of organ meats, which are rich in nutrients like vitamin A and K2 4.

carnivore macro breakdown

Macronutrient Breakdown Between Low Carb Vs Carnivore

Diet TypeCarbohydratesProteinsFats
CarnivoreNearly 0%VariesVaries

Low Carb vs Carnivore: A Comparative Analysis

In this section, we will delve deeper into the comparison between the low-carb and carnivore diets. We will explore four key areas: nutrient density, flexibility, potential health benefits, and sustainability.

Nutrient Density: A Closer Look

Carnivore Diet: Bioavailable Nutrients

The carnivore diet emphasizes nutrient-dense foods, particularly organ meats. Organ meats such as liver, kidney, and heart are packed with vitamins and minerals that are highly bioavailable. This means that these nutrients are in a form that the body can easily absorb and utilize. For example, organ meats are rich in Vitamin B12, a nutrient that plays a crucial role in nerve function and the production of DNA and red blood cells 5.

Low Carb Diet: Variety of Nutrients

On the other hand, a low-carb diet that includes a variety of vegetables also provides a wide range of nutrients. These include dietary fiber, vitamins, minerals, and antioxidants. However, the bioavailability of these nutrients can vary. For instance, iron from plant sources is not as readily absorbed as iron from animal sources 6.

Flexibility: Comparing Food Choices

Low Carb Diet: More Options

The low-carb diet offers more flexibility in food choices compared to the carnivore diet. While both diets restrict carbohydrate intake, a low-carb diet still allows for some plant-based foods. This includes non-starchy vegetables like spinach, broccoli, and bell peppers, as well as nuts and seeds. This variety can make the diet more appealing and easier for many people to follow 6.

Carnivore Diet: Limited Choices

The carnivore diet, on the other hand, is more restrictive. It limits the diet to animal products only, which can make it challenging for some people to adhere to in the long term. The lack of variety can also lead to nutrient deficiencies if not properly managed 3.

Food Choices Comparison

CriteriaLow-Carb DietCarnivore Diet
VegetablesAllowed (Non-starchy)Not Allowed
FruitsLimitedNot Allowed
MeatAllowedOnly Source of Food
DairyVariesSometimes Allowed
GrainsNot AllowedNot Allowed

Potential Health Benefits: Weighing the Advantages

Shared Benefits

Both diets have been associated with weight loss, improved blood sugar control, and reduced inflammation. These benefits are largely due to the reduction in carbohydrate intake, which can help regulate insulin levels and promote fat burning 2.

Carnivore Diet: Additional Benefits

However, the carnivore diet may offer additional benefits due to its elimination of all plant-based foods, which can sometimes contain antinutrients and toxins. Some people on the carnivore diet have reported improvements in digestive issues, autoimmune conditions, and mental health. However, these benefits are largely anecdotal, and more research is needed to understand the long-term effects of this diet 3.

Sustainability: Environmental Considerations

Carnivore Diet: Environmental Concerns

The sustainability of both diets can be a concern. The carnivore diet relies heavily on animal products, which raises questions about environmental sustainability. Livestock farming is a significant contributor to greenhouse gas emissions, and overfishing can deplete marine resources 7.

Low Carb Diet: More Sustainable Options

On the other hand, a low-carb diet that includes plant-based foods can be more sustainable, depending on the specific foods chosen. For instance, choosing locally grown vegetables or sustainably sourced fish can reduce the environmental impact of the diet 2.

In conclusion, both the low-carb and carnivore diets have their pros and cons. It’s important to consider your individual nutritional needs, lifestyle, and personal preferences when choosing a diet. Always consult with a healthcare professional before making significant changes to your diet.


The choice between a low-carb diet and a carnivore diet depends on individual health goals, dietary preferences, and lifestyle. Both diets have potential benefits and drawbacks. It’s important to consult with a healthcare professional before starting any new diet, especially extreme ones like the carnivore diet. Remember, the best diet is the one that you can sustain in the long term and that supports your overall health and well-being.


  1. https://www.dietdoctor.com/low-carb
  2. https://www.healthline.com/nutrition/low-carb-diet-meal-plan-and-menu
  3. https://www.healthline.com/nutrition/carnivore-diet
  4. https://www.primalkitchen.com/blogs/recipes/carnivore-diet-meal-plan-for-beginners
  5. https://www.healthline.com/nutrition/organ-meats
  6. https://www.healthline.com/nutrition/healthy-low-carb-foods
  7. https://truorganicbeef.com/blogs/beef-wiki/carnivore-diet

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