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Good luck brother. I have been doing intermittent fasting for years now. At the start it is a struggle but after awhile you become fully accustomed to the diet. It is great to lose weight and I feel like I have more energy especially in the mornings with no breakfast. A big bonus is you will have a better appreciation for food too!

I realized that on the first day, its awesome.

Excellent work.

Why such a diet?
A large amount of protein adversely affects the kidneys. There may be a risk of kidney stones.

You need to consult with your family doctor!