By now most people have heard of the ketogenic diet — minimal carbohydrates (10%), moderate protein (20%), and high healthy fat (70%), along with high amounts of fiber and antioxidants. But what many people don’t fully appreciate is how far the benefits extend beyond simply losing weight. Eating this way for 30–90 days is what it takes to achieve true “nutritional ketosis” — the state in which the liver produces ketone bodies for the body and brain to use as a primary energy source, resulting in more efficient use of stored body fat. For those focused on body fat loss specifically, “keto cycling” — alternating between keto and paleo — is an ideal strategy.
The health benefits of a well-maintained ketogenic diet are wide-ranging and well-documented. Five of the most significant include:
- Decreased inflammation — ketone production suppresses reactive oxygen species (ROS) and damaging free radicals that cause joint inflammation and tissue damage throughout the body
- Lower insulin levels — by eliminating glucose as the primary fuel source, the body no longer triggers constant insulin spikes, making keto particularly powerful for those with pre-diabetes or Type 2 diabetes
- Improved mental clarity — when glucose burns for fuel it produces brain-fogging free radicals; healthy fats do not, which is why keto has been used since the 1920s to treat epilepsy and is now being explored for Alzheimer’s and dementia
- Increased muscle mass — ketone production spares leucine, a branched-chain amino acid essential for building body mass, leaving higher levels available in the blood to support muscle growth
- Lower cancer risk — cancer cells can only use glucose for fuel; a ketogenic diet starves them of their primary energy source
Keto is not appropriate for everyone. Pregnant or breastfeeding women, those without a gallbladder, people with a history of kidney stones, those with a BMI under 20, and individuals with certain rare metabolic disorders should avoid this diet. As always, working with a qualified nutrition professional ensures the approach is tailored safely and effectively to your individual needs.