Benefits of spring onions

23rd May 2025

Spring onions are more than a garnish. From the garlic and leek family, they’re a quick way to add anti-inflammatory and antioxidant benefits to your plate.

Key points

Health benefits

They’re a source of:

  • Sulphur compounds like allicin, which give them their gentle bite and are linked to heart health and antimicrobial effects
  • Quercetin, a flavonoid with anti-inflammatory and anti-cancer properties
  • Soluble fibre, including prebiotic fructans that help feed gut microbes
  • Vitamins and minerals like vitamin C, B vitamins and potassium

Eating allium vegetables regularly is linked to:

  • Lower cancer risk – especially digestive cancers
  • Better heart health – including lower cholesterol and blood pressure
  • Healthier ageing – thanks to their antioxidant and anti-inflammatory effects

Add them to meals a few times a week for a steady supply of benefits, especially when combined with other alliums like onions, garlic, leeks and chives.

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Spring onions on a low FODMAP diet?

If you have IBS or follow a low FODMAP diet, the green tops of spring onions are lower in fructans and often better tolerated than the white bulbs. They can be a great way to add flavour if you're avoiding garlic and onion.

3 ways to enjoy

They’re great as a classic topping, but not only. We love them:

  1. In noodle bowls and broths – cook the white parts gently with garlic, ginger and sesame oil to build flavour, then top with the fresh green bits just before serving.
  2. With eggs – chopped into a frittata, stirred through an omelette or scrambled eggs.
  3. Tossed through warm grains – add them to cooked rice or bulgur with lemon juice, olive oil and a handful of herbs for a five-minute side.

References/sources

Human studies: Wan et al. 2019 – Kim et al. 2013 – Ebrahimi‐Mamaghani et al. 2014 – Zhou et al., 2011

History, compounds & biological activities: Galavi et al. 2021 – Chakraborty et al. 2022 – El-Hadidy et al. 2014

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