Benefits of ketones and ketone supplementation

What Are Ketones?

During periods of fasting, starvation, or low blood glucose availability, the liver uses fatty acids to produce three small molecules: beta-hydroxybutyrate, acetoacetate, and acetone. These are called ketone bodies. While the liver itself cannot use them for energy, it exports them to other tissues that can. This process is known as ketogenesis.

Benefits of Ketogenesis and Ketones

Ketones have been extensively studied for their impact on various body systems, from metabolism to brain health.

Sleep
Ketone bodies may improve sleep through dopamine modulation and neurotransmitter regulation. Both naturally produced (endogenous) and supplemental (exogenous) ketones appear to enhance sleep quality by different mechanisms. Though much of the evidence comes from animal studies, the safety profile is reassuring, and many people report better sleep and morning alertness with moderate ketone use.

Insulin Resistance
High levels of circulating fatty acids can impair insulin sensitivity, worsening insulin resistance. Ketones help reduce circulating fatty acids by up to 44%, potentially improving blood glucose control without increasing insulin secretion. Instead, they make the body more responsive to existing insulin. Taking ketones before meals may lower post-meal sugar spikes, reduce insulin surges, and support weight management over time.

Mental Clarity, Post-Stroke Recovery, and Dementia Risk Mitigation
The brain can efficiently use ketones as an alternative fuel when glucose utilization is limited by insulin resistance. Ketones deliver cleaner energy, improve mitochondrial function, and reduce reactive oxygen species (free radicals). This supports better brain performance, mental clarity, and neuronal resilience. They also promote antioxidant gene expression, increase cerebral blood flow by roughly 10%, and help stabilize neurotransmitters such as GABA, all of which contribute to healthier brain aging and cognition.

Dementia Protection
Ketones may help in early cognitive decline by bypassing the brain’s impaired glucose metabolism, a key feature of mild cognitive impairment (MCI). This metabolic support can enhance energy availability and cognition, offering potential neuroprotective effects long before dementia onset.

Post-Stroke and Myocardial Infarction
Clinical and preclinical evidence suggests that raising ketone levels, either through diet or supplementation, after a stroke or heart attack can improve oxygen delivery, tissue reperfusion, and mitochondrial recovery, ultimately leading to better functional outcomes.

Effects on NAD⁺
NAD⁺ is essential for more than 500 enzymatic reactions in the body and plays a vital role in cellular energy production and repair. Rather than replenishing NAD⁺ through external precursors, promoting internal NAD⁺ generation is generally more effective. Ketogenic diets and ketone supplementation both enhance endogenous NAD⁺ production through interconnected metabolic pathways, supporting energy balance and cellular longevity.

How to Increase Ketone Levels

Ketogenic Diet
The ketogenic diet remains the most efficient way to sustain stable, elevated ketone levels. While results are well-documented, maintaining strict adherence can be challenging for many people.

Ketone Supplementation

• MCT Oils (Medium-Chain Triglycerides)

• Ketone Esters

• 1,3-Butanediol

• Ketone Salts

Some formulations combine multiple ketone sources to increase tolerability and reduce digestive discomfort, enhancing both convenience and efficacy.

In essence, ketones represent the body’s remarkable ability to adapt and thrive when energy is scarce. Harnessing them wisely may unlock new horizons in metabolic health, performance, and longevity.