Free Fatty Acids

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First, free fatty acids are the energy dense molecules that can serve as an immediate fuel source for our muscles during exercise.

In order to use fats for ATP production, they must be either converted to free fatty acids or already be present in the muscle in the form of free fatty acids.

The important take home message regarding their structure Is that free fatty acids are energy rich molecules containing a string of carbons and hydrogens which can be readily oxidized in muscle mitochondria for ATP production.