Diets

Paleolithic Diet

The Paleolithic Diet, commonly known as the Paleo Diet, is a nutritional approach based on the presumed eating patterns of humans during the Paleolithic era, roughly 2.5 million to 10,000 years ago. The core principle is that modern humans are genetically adapted to eat the foods available to our pre-agricultural ancestors, and that many contemporary health problems stem from the mismatch between our genes and modern processed foods. This diet emphasizes whole, unprocessed foods that could theoretically be obtained through hunting and gathering, while excluding foods that became common only after the development of agriculture and industrial food processing. The Paleo Diet includes grass-fed meats, wild-caught fish and seafood, eggs, vegetables, fruits, nuts, seeds, and healthy oils such as olive, coconut, and avocado oil. It strictly excludes grains (wheat, oats, rice, corn), legumes (beans, lentils, peanuts, soy), dairy products, refined sugar, processed foods, artificial sweeteners, vegetable oils high in omega-6 fatty acids, and most packaged or processed foods. Some variations allow limited amounts of certain foods like grass-fed butter, fermented dairy, or white rice, but the strictest interpretations maintain that these post-agricultural foods should be avoided entirely. Proponents claim the Paleolithic Diet can help address numerous health conditions including type 2 diabetes, cardiovascular disease, autoimmune disorders, inflammatory conditions, obesity, metabolic syndrome, and digestive issues such as irritable bowel syndrome and celiac disease. The diet's elimination of gluten-containing grains makes it naturally suitable for those with celiac disease or gluten sensitivity, while its focus on low-glycemic foods and elimination of refined carbohydrates may help stabilize blood sugar levels in diabetics. The anti-inflammatory properties of the diet, stemming from its emphasis on omega-3 fatty acids and antioxidant-rich vegetables while eliminating processed foods and excess omega-6 oils, may benefit those with chronic inflammation, arthritis, or autoimmune conditions. Several studies have shown potential benefits of the Paleo Diet, including improved glucose tolerance, better blood pressure control, increased satiety, and favorable changes in cardiovascular risk factors. However, the scientific community remains divided, with critics noting the lack of long-term studies, concerns about saturated fat intake, the exclusion of nutrient-rich food groups like legumes and whole grains, and questions about the historical accuracy of the diet's premises. This diet may be most beneficial for individuals with autoimmune conditions, those seeking to reduce inflammation, people with insulin resistance or type 2 diabetes, individuals with gluten sensitivity, and those looking to eliminate processed foods from their diet. Athletes and highly active individuals may need to modify the approach to ensure adequate carbohydrate intake for performance.

20 recipes5 conditions

What it helps with

What the evidence says about Paleolithic Diet and each condition, and the foods doing the work.

Autoimmune Conditions

Moderate

The Paleo diet can help manage autoimmune conditions by removing potential inflammatory triggers like gluten, dairy, and legumes. The nutrient-dense foods support immune system regulation and reduce systemic inflammation that can exacerbate autoimmune responses.

How By eliminating common food allergens and inflammatory compounds, the diet reduces immune system overactivity. The high nutrient density supports gut health and helps restore immune system balance by reducing intestinal permeability.

Key foods Wild-caught fish, grass-fed lamb, bone broth, kale, sweet potatoes, olive oil, fermented vegetables

Digestive Disorders

Moderate

The Paleo diet eliminates common digestive irritants like grains and legumes, which can cause inflammation and intestinal permeability. The focus on whole foods supports gut microbiome health and reduces digestive system stress.

How Removing potential gut irritants like gluten and lectins reduces inflammation in the digestive tract. The diet's emphasis on nutrient-dense foods supports gut lining repair and promotes a healthy, diverse microbiome.

Key foods Bone broth, fermented vegetables, wild-caught fish, grass-fed beef, sweet potatoes, coconut oil, eggs

Chronic Inflammation

High

The Paleo diet is rich in anti-inflammatory foods and eliminates pro-inflammatory processed foods and grains. Its emphasis on omega-3 fatty acids, antioxidants, and nutrient-dense whole foods helps reduce systemic inflammation and supports immune function.

How The diet provides high levels of omega-3 fatty acids which directly suppress inflammatory pathways. Elimination of processed foods and grains reduces inflammatory markers like C-reactive protein and helps reset the body's inflammatory response.

Key foods Wild-caught salmon, grass-fed beef, blueberries, spinach, walnuts, coconut oil, turmeric

Insulin Resistance

High

The Paleo diet eliminates refined carbohydrates and processed foods that contribute to insulin resistance. By focusing on whole foods with low glycemic index, the diet helps stabilize blood sugar and improve insulin sensitivity. The high protein and healthy fat content further supports metabolic health.

How By removing high-glycemic foods and emphasizing nutrient-dense whole foods, the diet reduces chronic inflammation and oxidative stress. The balanced macronutrient profile helps regulate insulin production and improve cellular glucose uptake.

Key foods Grass-fed beef, wild-caught salmon, eggs, almonds, avocados, olive oil, leafy green vegetables

Metabolic Syndrome

High

The Paleo diet addresses multiple metabolic syndrome components by promoting weight loss, improving insulin sensitivity, and reducing inflammation. Its whole-food approach naturally supports cardiovascular and metabolic health.

How The diet's low-glycemic approach reduces insulin resistance and helps normalize blood pressure and lipid profiles. By emphasizing nutrient-dense, whole foods, it supports metabolic flexibility and reduces systemic inflammation associated with metabolic syndrome.

Key foods Grass-fed beef, wild-caught salmon, avocados, almonds, spinach, berries, olive oil

General information about how people eat, not medical advice. Talk to a clinician before changing your diet to treat a condition.