Can Fasting Reduce IGF-1 Levels?

The way fasting works is by reducing levels of cancer promoting growth hormone known as insulin-like growth factor one. Fasting isn't the only way to drop IGF-1 levels but that's largely because you're cutting your protein intake. Going on a calorie restricted diet made lower IGF-1 a little but eating a plant-based diet can lower it more. If you compare those eating strictly plant-based diets, getting about the recommended daily intake of protein, 0.8 grams per kilogram of body weight, and compare them to people just slender but eating more typical American protein intake.