10 Signs You Are Not Eating Enough

2. Always hungry

Constant hunger is another sign you are not consuming enough calories. Studies have shown that the more you restrict your calories, the hungrier you feel. Research has also indicated that food cravings tend to increase as people decrease their calories due to hormones that control hunger and fullness. In animal studies, subjects who had their calorie intake decreased had increased leptin and IGF-1 appetite suppressing hormones decreased.