Foods High in Iron

Iron is a central component of hemoglobin, the protein in red blood cells that carries oxygen from your lungs to every tissue in your body. When iron levels drop, your cells receive less oxygen, leading to fatigue, brain fog, and poor exercise tolerance. Iron deficiency anemia affects an estimated 1.6 billion people worldwide.

There are two types of dietary iron. Heme iron, found in animal foods like red meat, poultry, and shellfish, is absorbed at a rate of about 15-35%. Non-heme iron, found in plant foods like spinach, lentils, and fortified cereals, is absorbed at only 2-20%. Pairing non-heme iron sources with vitamin C (like lemon juice on spinach) significantly boosts absorption.

Certain groups need to pay extra attention to iron: women of reproductive age (due to menstrual losses), pregnant women (whose blood volume increases dramatically), endurance athletes, and people following vegetarian or vegan diets. If you fall into any of these categories, prioritizing iron-rich foods at most meals is a practical first step before considering supplements.