Why is lack of energy a risk of fad diets?

When you go on a fad diet and exclude necessary nutrients, you're putting yourself at risk for becoming ill. ... Lack of energy: Not getting adequate calories and nutrients that the body needs to function properly can cause fatigue, foul mood and feeling depressed which can lead to craving unhealthful foods

Explanation:

if you have a lack of energy ofcourse ur not gonna want to do anything. so u wont, u wont move around you'll prolly stay on the couch eatin junk food and watchin ya fav show off netflix. your not gonna go outside take a jog and eat healthy

youll get beat if you dont listen to the older parental figures rules

i have no clue xdxdxdxdxdxd