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Iron Nutrition Basics

Everything you need to know about getting β€” and absorbing β€” enough iron from food.

Why Iron Matters

Iron carries oxygen in your blood to every cell in your body. Without enough, your cells are essentially suffocating β€” slowly. That's why the first signs are fatigue, brain fog, and dizziness. Your body is literally running on less oxygen.

Women need 18mg of iron daily (27mg if pregnant). Men need 8mg. Most people don't track this β€” and most diets fall short.

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Women

18mg / day

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Pregnant

27mg / day

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Men

8mg / day

The Two Types of Iron

Heme Iron

Found in animal sources

Red meat, liver, sardines, tuna. Your body absorbs 15–35% of it β€” the most efficient form.

Red MeatBeef LiverSardinesTunaOysters

Non-Heme Iron

Found in plant sources

Spinach, lentils, beans, pumpkin seeds. Your body absorbs only 2–20%. But the right pairings change everything.

SpinachLentilsPumpkin SeedsChickpeasBeans

Vegetarian or vegan?You're not at a disadvantage β€” you just need to be strategic about pairings and portions. The rules below are especially important for plant-based eaters.

The 3 Rules of Iron Absorption

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Rule 1: Pair with Vitamin C

Vitamin C can increase non-heme iron absorption by 2–3x when eaten in the same meal. This is the single biggest lever for plant-based eaters.

Practical examples:

  • βœ“ Squeeze lemon on your lentils
  • βœ“ Eat an orange after a spinach meal
  • βœ“ Add tomatoes to your bean stew
  • βœ“ Have bell peppers with your sukuma wiki
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Rule 2: Avoid Blockers at Mealtime

Tea and coffee contain tannins that reduce iron absorption by up to 60%. Milk and calcium supplements compete directly with iron for absorption.

The fix:

Wait 30–60 minutes after eating before drinking tea or coffee. Have your chai between meals, not with them.

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Rule 3: Cook Smart

  • β†’Cooking in cast iron can increase the iron content of food β€” especially acidic foods like tomato sauce.
  • β†’Cooking spinach and other greens makes their iron more accessible than eating them raw.
  • β†’Soaking and sprouting beans and lentils overnight reduces phytates which otherwise block iron absorption.

Top 10 Iron-Rich Foods in Nairobi

All available at local markets and supermarkets.

1Sesame Seeds
14.6mg per 100gPlant
2Pumpkin Seeds
8.8mg per 100gPlant
3Chia Seeds
7.7mg per 100gPlant
4Beef Liver
6.5mg per 100gHeme
5Dark Chocolate (70%+)
6.3mg per 100gPlant
6Oysters
5.1mg per 100gHeme
7Lentils
3.3mg per 100gPlant
8Sardines
2.9mg per 100gHeme
9Chickpeas
2.9mg per 100gPlant
10Spinach / Sukuma Wiki
2.7mg per 100gPlant

Sample Day of Iron-Rich Eating

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Breakfast

Oatmeal with pumpkin seeds, dates, and sliced banana. Glass of orange juice (vitamin C pairing).

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Lunch

Lentil stew with sukuma wiki, tomato and onion base (vitamin C from tomatoes). Side of brown rice.

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Snack

Handful of cashews and an orange.

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Dinner

Grilled beef liver with steamed broccoli and sweet potato. Squeeze of lemon over the broccoli.

β˜• Wait at least 30 minutes after dinner before having your evening chai.

Want to know if YOUR diet is falling short?

Take our free Iron Food Score quiz β€” 2 minutes, no medical jargon.

Take the Quiz β†’

Or explore our iron-focused eating plans β†’

This is nutrition awareness information, not medical advice. If you suspect iron deficiency, please consult a healthcare professional for proper testing and diagnosis.

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