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Fasting Timer

Fasting Plan

I started fasting at

Choose a fasting plan and start time, then click Start to begin your fast

How This Works

Intermittent fasting cycles between periods of eating and fasting. During fasting, insulin levels drop, prompting the body to switch from glucose to stored fat for energy. After 12-16 hours, the body enters ketosis, producing ketone bodies for fuel. Extended fasting (16+ hours) activates autophagy, a cellular cleanup process where damaged components are recycled. Research suggests intermittent fasting may improve insulin sensitivity, reduce inflammation, and support cardiovascular health. The 16:8 method is the most popular protocol, balancing ease of adherence with metabolic benefits.

This tool is for educational purposes only. Not medical advice. Consult a healthcare professional.

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