Glycogen and Fats as Energy Source

1,281 views · Published 13 January 2018 · 9:21 · Indexed 30 September 2026

Channel: Nikolay's Genetics Lessons · 2018 · Education

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When exercising, your body uses two main sources of fuel -- carbohydrates and fats. Carbs come from the carbs you eat, which travel around your blood as glucose, as well as carbs stored in your liver and muscles, known as glycogen. Fat comes from free fatty acids and triglycerides circulating in your bloodstream as well as from stored fat. How you eat and how you train can have a big impact on whether you're burning fat or glycogen when training.

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