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An herb whose root extracts are sold in supplements.

Helps convert food into usable energy and supports nerve function.

Forms enzyme helpers used in energy metabolism.

Provides building blocks for NAD and NADP, which participate in cellular energy reactions.

FTO is studied in relation to body weight and energy balance. Common variants can contribute to population-level differences in obesity susceptibility, alongside many other genes and environmental factors.

Explore the history, production signals, nutrient context and monitoring that shape Dr. Purser’s hormone assessment.

See how homocysteine connects to cysteine and glutathione. Follow seven simple steps, explore the side routes, and tap a word or building block to learn more.

Explore multiple sclerosis (MS), central nervous system inflammation, myelin, symptoms, and related immune signals.

What if your constant sugar cravings are not simply a willpower problem? You wake up tired. You reach for sugar or quick carbohydrates. You feel better for a little while. Then the crash hits and you are searching for energy all over ag

A subscriber episode exploring questions about MTHFR, nutrient status, and daily energy. Read the public introduction and continue on Substack.

Dan Purser MD and Jackson Larkin discuss the connections they consider between sugar cravings, cellular energy, and methylation.

From Brain Fog to Burnout: The Hidden Deficiencies Your Bloodwork Misses. By Dan Purser MD