Published on April 1, 2026
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Iron is a mineral that’s vital to our health, our metabolism and survival. All our cells contain some iron, but most of the iron in our bodies is in our red blood cells which transport oxygen from our lungs to the organs and tissues throughout our bodies. However, inflammation associated with excess body weight elevates a hormone produced in your liver called hepcidin, which regulates the iron absorption into your body from your digestive tract. Being overweight is an ongoing inflammatory problem wherein your extra pounds of white adipose tissue crank out inflammatory signals 24 hours a day, seven days a week. The more excess weight you have, the higher the inflammation. This leads to higher levels of hepcidin which reduce or prevent dietary iron intake, regardless of the iron content of your food. The result can be a metabolic nightmare of weight gain, fatigue, and poor thyroid function.
When it comes to the obese population, iron deficiency is a frequent finding.
An obese person is likely to get anemia because of:
Impaired iron absorption
Low levels of iron in the circulating blood
Poor dietary iron intake
Increased iron requirements
There are two forms of dietary iron: heme and non-heme.
Heme iron is derived from hemoglobin, the protein in red blood cells that delivers oxygen to cells. Heme iron is found in animal foods that originally contained hemoglobin, such as red meats, fish, and poultry. Iron in plant foods such as lentils and beans is arranged in a chemical structure called nonheme iron. This is the form of iron added to iron-enriched and iron-fortified foods. Heme iron is absorbed better than nonheme iron, but most dietary iron is nonheme iron. A variety of heme and non-heme sources of iron are listed below.
Why is iron an important component for your weight loss journey? Iron helps carry oxygen throughout your body, which directly impacts your energy levels, stamina, and ability to stay consistent with workouts and daily activity. Low iron can leave you feeling tired and drained — making it much harder to stick with healthy habits long-term. The good news? You can improve your intake with realistic, everyday foods. Focus on a mix of both types, and pair non-heme sources with vitamin C-rich foods (think strawberries, bell peppers, tomatoes, or citrus) to boost absorption.
Quick Tips to Make Iron Work for You
⇾ Include some heme sources regularly — even modest amounts from chicken or tuna salads add up.
⇾ For plant-based or non-heme meals, always add a vitamin C source at the same time to improve absorption.
⇾ Vegetarians or those eating mostly plant foods may need nearly twice as much total iron because non-heme is absorbed less efficiently.
⇾ These are normal, everyday portions — no need to overeat. Focus on consistency rather than perfection.
⇾ If you suspect low iron (fatigue, pale skin, shortness of breath), get your levels checked by your doctor before supplementing.
Building better energy and stamina through smarter food choices is part of ditching the fattitude and creating permanent change. Small, consistent upgrades to your plate can support your workouts, your business, your family life — everything.
To help you make good decisions when it comes to iron in your diet, here’s a reference sheet you can download and print.
Slimcerely yours℠,
