Spinach

The great iron myth. Rich in iron, but its bioavailability is low due to oxalic acid. Popeye was great marketing, but you'd have to eat a mountain of it to see results. Where spinach genuinely shines is vitamin K and folate — it's one of the most nutrient-dense leafy greens per calorie.

Rich in antioxidants, calcium, fibre, iron and vitamins & minerals.