We have talked about why iron absorption matters and the simple habit that improves it. Here is the practical version: what to actually put on a plate, which plant sources are worth leaning on, and the full list of what helps and what hinders.
The best iron sources, by type
Heme iron, the well-absorbed kind, comes from animal foods. Red meat is the richest source, followed by poultry and fish. Even in small amounts, these deliver iron reliably, and they have a bonus effect: eating meat, fish or poultry in a meal also improves the absorption of any non-heme iron on the same plate.
Non-heme iron, the plant kind, is found in a wide range of foods. Legumes are the workhorses: a cup of cooked lentils provides around 6 to 7 milligrams of iron, chickpeas around 4 to 5, kidney beans and black beans around 3 to 5. Beyond legumes, there is tofu and tempeh, wholegrains, pumpkin seeds and sesame seeds, cashews, and leafy greens. Fortified foods, like some breads and cereals, also contribute.
Because plant iron is absorbed less efficiently, the strategy for anyone eating mostly or entirely plant-based is not just to eat iron-rich foods, but to eat them in a way that maximises absorption.
The enhancers: what to pair with iron
Vitamin C is the standout. It converts plant iron into a more absorbable form and can multiply how much you take up. Pair your iron with citrus, capsicum, tomato, strawberries, kiwi, broccoli, or any other vitamin C source, in the same meal.
A small amount of meat, fish or poultry also enhances the absorption of non-heme iron eaten alongside it. So even a little animal protein in an otherwise plant-based meal helps you get more from the plants.
The inhibitors: what to keep separate
Tea and coffee are the main ones, along with red wine, cocoa, and other polyphenol-rich drinks. The polyphenols and tannins they contain bind iron and can cut absorption substantially. Keep them to an hour either side of your iron-rich meals rather than alongside.
Calcium competes with iron for absorption. A large calcium hit in the same meal, a big glass of milk, a calcium supplement, reduces how much iron you take up. Across a full day of varied eating this mostly evens out, so there is no need to be precious, but if you are actively working on your iron, give your calcium and iron a little space.
Phytates, found in wholegrains and legumes, bind some of the iron in those same foods. This is not a reason to avoid them, they are excellent foods, but it is why soaking, cooking, sprouting, and fermenting help, and why pairing them with vitamin C matters. It counteracts the phytates.
Oxalates, high in spinach in particular, bind both iron and calcium. Spinach looks iron-rich on paper, but much of that iron is poorly available. It is still a wonderful food, just not the reliable iron source its numbers suggest. Lean on lentils, other greens, and vitamin C pairings instead.
Putting it on a plate
Here is what the principles look like as actual meals.
Lentil salad with roasted capsicum, tomato, parsley and a lemon dressing. The lentils bring iron, the capsicum, tomato and lemon bring vitamin C, and there is no inhibitor in sight.
Tofu and broccoli stir-fry with sesame seeds. Iron from the tofu and seeds, vitamin C from the broccoli.
A small steak with a side of greens and roasted tomato. Heme iron from the steak, which also boosts absorption of the iron in the greens, plus vitamin C from the tomato.
Chickpea and roast vegetable bowl with a squeeze of lemon. Iron from the chickpeas, vitamin C from the vegetables and lemon.
Wholegrain toast with tahini and sliced tomato. Iron from the tahini and bread, vitamin C from the tomato, and the wholegrain phytates offset by the pairing.
In each case, save your tea or coffee (or red wine) for an hour or so later. That is the whole system.
The takeaway: Build your iron meals around two ideas: include a vitamin C source, and keep tea, coffee, and big calcium hits separate. Lean on lentils and other legumes rather than spinach for plant iron, and remember that even a little meat or fish boosts the absorption of the plant iron beside it. Eat well, then let your body keep more of