In the morning, Lumen measures whether your body is burning fats or carbs. Since your morning measurement can only be taken following a 6-8 hour fast, the Lumen system is able to use this data to determine how full or empty your glycogen stores are. 

For example, the fuller your glycogen stores are, the more your body will be burning carbs for energy and vice versa.

Still confused about how glycogen works? Ask us at support@lumen.me.

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