Have you ever wondered if following a carnivore diet can lead to the formation of kidney stones? This article aims to explore the potential association between a carnivorous eating pattern and the development of kidney stones. By analyzing existing research and considering the impact of various factors, we will shed light on whether there is a genuine cause for concern or if it’s just a dietary myth. So, let’s delve into the world of nutrition and kidney health to discover the truth behind the carnivore diet and kidney stones.


In recent years, the Carnivore Diet has gained significant popularity as a way to improve health, lose weight, and increase energy levels. With its focus solely on animal-based foods, many individuals have embraced this diet in search of its promised benefits. However, concerns regarding the potential link between the Carnivore Diet and kidney stones have emerged. In this article, we will delve into the science behind kidney stones, explore the intricacies of the Carnivore Diet, and shed light on the connection between the two. By understanding the dietary factors that influence kidney stone formation, we can make informed decisions about our health and well-being.

Understanding Kidney Stones

Before we can explore the potential effects of the Carnivore Diet on kidney stone formation, it is essential to understand what kidney stones are and how they develop. Kidney stones are hard deposits that form in the kidneys when certain substances in the urine crystallize. These substances can include calcium, oxalate, uric acid, and others. When the concentration of these substances becomes too high or when the urine lacks substances that prevent crystal formation, kidney stones can develop. The size and composition of kidney stones can vary, and they can cause great discomfort and pain when passing through the urinary tract.

What is the Carnivore Diet?

The Carnivore Diet, as its name suggests, is a diet that primarily consists of animal-based foods. Followers of this diet eliminate all plant-based foods, including fruits, vegetables, grains, legumes, and even some dairy products, from their meals. Instead, the Carnivore Diet promotes the consumption of meat, fish, eggs, and animal fats as the primary sources of nutrition. Advocates claim that by consuming only animal-based products, individuals can optimize their nutrient intake while avoiding the potential adverse effects of plant-based foods.

The Connection between Carnivore Diet and Kidney Stones

When considering the potential link between the Carnivore Diet and kidney stones, several factors come into play. While the Carnivore Diet may provide a rich source of essential nutrients like protein and fat, it lacks fibers and certain compounds found in plant-based foods that have been shown to be protective against kidney stone formation. Additionally, increased animal protein intake, which is a hallmark of the Carnivore Diet, has been associated with an increased risk of kidney stone formation. By exploring these dietary factors, we can gain a better understanding of how the Carnivore Diet may influence kidney stone development.

Dietary Factors that Influence Kidney Stone Formation

Several dietary factors influence the formation of kidney stones, and understanding these factors is crucial in navigating the potential risks associated with the Carnivore Diet. Some of the main factors include low fiber intake, high protein intake, and increased acidity of the urine. Each of these factors plays a role in the formation and composition of kidney stones, contributing to their prevalence and potential recurrence.

Lack of Fiber and Plant-Based Foods

One significant aspect of the Carnivore Diet is the limited consumption of fiber and plant-based foods. Fiber plays a crucial role in maintaining bowel regularity, preventing constipation, and improving overall gut health. Additionally, certain types of fibers, such as soluble fibers found in fruits, vegetables, and whole grains, can bind to calcium and oxalate in the digestive tract, reducing their absorption and subsequent excretion through the urine. By excluding these fiber-rich foods, individuals following the Carnivore Diet may be missing out on essential compounds that help prevent the formation of kidney stones.

High Protein Intake

Protein is an important macronutrient necessary for various physiological processes in the body. However, a high protein intake, as often seen in the Carnivore Diet, can have detrimental effects on kidney health. When protein is broken down, it produces waste products, including urea and uric acid. Increased levels of uric acid in the urine can lead to the formation of uric acid stones, a type of kidney stone. Moreover, high protein intake can increase calcium excretion in the urine, which can contribute to the development of calcium oxalate stones, the most common type of kidney stone.

Increased Animal Protein and Acidic Urine

The high animal protein consumption associated with the Carnivore Diet can impact the acidity of urine. Animal proteins contain sulfur-based amino acids, which, when metabolized, can lead to the production of sulfuric acid. This acidification of urine can increase the risk of forming uric acid stones. Furthermore, a predominantly animal-based diet can lower urine pH, making it more acidic, and may disrupt the balance between substances that promote or inhibit stone formation, thereby increasing the likelihood of kidney stone development.

Animal Protein and Calcium Oxalate Stones

Calcium oxalate stones are the most prevalent type of kidney stones, and their formation is influenced by dietary factors, including animal protein intake. Animal proteins are rich in purines, which are broken down into uric acid in the body. Excess uric acid can bind with calcium to form calcium oxalate stones. Moreover, animal proteins contain high levels of sulfur amino acids and methionine, which increase urinary calcium and oxalate levels, further contributing to the development of these stones. As the Carnivore Diet emphasizes animal protein consumption, individuals following this diet may be at an increased risk of calcium oxalate stone formation.


While the Carnivore Diet offers promises of improved health and weight loss, it is essential to consider its potential effects on kidney stone formation. The exclusion of fiber and plant-based foods, coupled with a high animal protein intake, can disrupt the natural balance within the body and increase the risk of developing kidney stones. It is crucial to approach any restrictive diet with caution and ensure that adequate measures are taken to mitigate potential health risks. If you are considering the Carnivore Diet or any other dietary change, it is always advisable to consult with a healthcare professional to determine the best approach for your individual needs. By prioritizing your health and understanding the impact of dietary choices, you can make informed decisions that support your overall well-being.