Ketosis is a natural metabolic state that humans have regularly entered throughout evolution, and even newborn babies transition into mild ketosis within days after birth — discover how this ancient mechanism supports energy needs from infancy to adulthood
Topic
Ketones
Ketones are molecules produced by the liver when it breaks down fat for energy. There are three types: beta-hydroxybutyrate (BHB), acetoacetate, and acetone. Your body produces ketones naturally during fasting, low-carb eating, or extended exercise—they're an alternative fuel source that your brain and muscles can use efficiently. Ketone levels can be measured in blood (most accurate), urine, or breath to determine if you're in ketosis.
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Critical safety information for anyone taking medications or with health conditions. Keto can work remarkably well - sometimes too well, too fast. Here's when and why you need medical supervision.
You've tried everything. Eaten less, exercised more, counted calories. But the weight won't budge. What if the problem was never your lack of willpower — but a fuel switch that got stuck?