Is Paleo the same as low-carb?

Not necessarily. Some versions are lower in carbohydrate, but many include substantial fruits and starchy vegetables.

Do I have to avoid all grains and dairy?

Most Paleo plans exclude them, but long-term sustainability and nutrient adequacy vary; a dietitian can help tailor a safer approach.

What does research say overall?

Meta-analyses of small RCTs suggest short-term improvements in some metabolic markers, but longer-term outcomes and the best definition of “Paleo” remain uncertain.

What does the evidence say about the paleo diet for specific health conditions?

The paleo diet eliminates grains, legumes, dairy, and processed foods in favour of meat, fish, vegetables, fruits, and nuts — approximating presumed pre-agricultural eating patterns. Evidence is emerging rather than established. The strongest data exists for metabolic conditions: multiple RCTs show short-term improvements in blood glucose, insulin sensitivity, blood pressure, and lipid profiles in people with type 2 diabetes and metabolic syndrome, generally outperforming standard dietary guidelines in these contexts. Long-term evidence (beyond 2 years) is limited. The elimination of legumes and whole grains removes foods with strong evidence for cardiovascular protection — a genuine nutritional trade-off that warrants discussion with a practitioner.

Is the paleo diet safe long-term and are there any concerns?

The main nutritional concerns with strict paleo adherence are: reduced fibre intake from elimination of legumes and grains (important for gut microbiome diversity and cardiovascular health), potential calcium inadequacy from dairy elimination, and high saturated fat intake depending on meat selection. These concerns are addressable through careful food selection — emphasising fish, game meat, abundant vegetables, and calcium-rich plant sources. Most concerns apply to overly rigid interpretation; flexible paleo approaches that include some legumes retain most metabolic benefits while reducing nutritional risk. As with all elimination approaches, those with a history of disordered eating should approach with caution.

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Paleo Diet

The Paleo diet is a dietary pattern that typically emphasizes minimally processed foods such as vegetables, fruits, nuts, eggs, fish, and...

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Reviewed by Internal Medical Editorial Team · Integrative Health Content Review

Quick answer

The Paleo diet is a whole-food dietary pattern based on foods presumed available to early humans—lean meats, fish, vegetables, fruits, nuts, and seeds—whilst excluding grains, legumes, and processed foods. It is commonly used to support weight management, blood sugar control, and cardiometabolic health markers such as cholesterol and blood pressure. Short-term randomised controlled trials suggest potential benefits for some cardiometabolic outcomes, though longer-term evidence remains limited.

What Paleo Diet is commonly used for

Conditions

Type 2 diabetes mellitus Irritable bowel syndrome Acne vulgaris Non-alcoholic fatty liver disease

Paleo Diet

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Who Is This For?

Best for

Not ideal for

Commonly used for

Type 2 diabetes mellitus

Irritable bowel syndrome

Acne vulgaris

Non-alcoholic fatty liver disease

Rheumatoid arthritis

Metabolic syndrome

Symptoms practitioners commonly work with