"The first misconception about fasting is that it is voluntary starvation, and who would blame someone for thinking this way? We were raised in the three-meal-a-day culture that told us that a healthy life was built on breakfast, lunch, and dinner. If you skipped one of these meals, you’d kick your body into starvation mode and ruin your metabolism.
Now it is certainly possible to go overboard with extended fasting. However,…"
(Excerpt from: Things EVERY Beginner to Fasting Does Wrong: )