You need minerals. You don’t need the myth.
Calcium, iron, and the idea that plants leave you short.
Calcium and iron are real nutrients worth planning for — but they aren’t reasons you need dairy or meat. Plant-based eating works best when you know the reliable sources and a few absorption rules.
Calcium is a mineral, not a milk monopoly.
Fortified soy & plant milks
Many soy and other plant milks are fortified with calcium — check the label.
Calcium-set tofu
Tofu made with calcium salts (calcium sulfate) is a solid calcium source.
Low-oxalate greens
Kale, bok choy, and broccoli — their calcium is absorbed about as well as milk’s.
Other fortified foods
Fortified juices and ready-to-eat cereals add calcium too.
Iron is about source + absorption.
Dietary iron comes in two forms. Heme iron (from animal foods) is absorbed more easily; plants and fortified foods provide non-heme iron. The real trick with non-heme iron is how you pair it (NIH ODS).
Heme iron
More easily absorbedFound in meat, seafood, and poultry.
Non-heme iron
Absorbed less readily on its own — but you can help it alongThe iron in plants and fortified foods — beans, lentils, tofu, nuts, seeds, whole grains, fortified cereals.
Help non-heme iron along.
Boost: pair with vitamin C
Vitamin C — citrus, peppers, tomatoes, strawberries — improves absorption of non-heme iron. Add some to bean, lentil, and tofu meals.
Watch timing: some things compete
Polyphenols (in tea and coffee) and calcium can lower non-heme iron absorption. Some people keep strong tea/coffee and high-dose calcium supplements away from iron-heavy meals.
Simple meals that cover the bases.
Tofu scramble + fortified soy milk
Calcium-set tofu and fortified soy milk on one plate.
Bean chili + tomatoes & peppers
Non-heme iron from beans, vitamin C from tomatoes and peppers.
Lentil bowl + citrus dressing
Lentils for iron, a citrus dressing to help absorption.
Calcium-set tofu stir-fry + broccoli/bok choy
Calcium-set tofu with well-absorbed leafy greens.
Sources & citations (3)Tap to open
- Calcium — Fact Sheet for Health ProfessionalsLists nondairy calcium sources (fortified plant beverages and juices, tofu made with calcium sulfate, kale, broccoli, bok choy). Notes calcium bioavailability varies: spinach calcium is poorly absorbed (~5%) due to oxalate, while calcium from broccoli, kale, and cabbage is absorbed similarly to milk.
- Iron — Fact Sheet for Health ProfessionalsDietary iron has two forms — heme and nonheme; plants and fortified foods contain nonheme iron only, and heme iron has higher bioavailability. Ascorbic acid (vitamin C) enhances nonheme-iron absorption; polyphenols and phytate reduce it, and calcium can reduce absorption of both forms.
- Cancer: Carcinogenicity of the consumption of red meat and processed meat (Q&A)IARC classified processed meat as Group 1 (carcinogenic to humans) based on colorectal cancer evidence, and red meat as Group 2A (probably carcinogenic to humans).
We summarize these sources in our own words and link to the originals. Summaries can simplify nuanced findings — follow the links for the full picture.