10 Reasons Your Diet Is Making You Tired

4. Your diet restricts red meat

It’s not uncommon for vegetarians and menstruating women to suffer from iron deficiency. Iron is essential for strength and endurance, so you’ll lack energy if you’re iron-deficient, even if your diet is otherwise balanced. Red meats are an excellent source of iron so go ahead and fill up. Make sure to get lots of vitamin C to promote good iron absorption.