Jackfruit

What it does

High fibre slows glucose; unripe jackfruit is used as a meat substitute in South Asia.

• Fibre-dense, low glycaemic

Where the number comes from

Jackfruit sits in the fruit group of the Fadnes model, the only peer-reviewed model that converts eating into years of life. The lifetime gain for that group is spread across the days you actually eat it — a daily serving from age 20 to 80 — which gives +10 min per serving. The authors rate the evidence behind this group as low.

What it is made of

• Fibre
• Carotenoids
• Potassium

How to eat it

Young/green for fibre; ripe for sweetness.

Minutes derived from Fadnes LT, Økland J-M, Haaland ØA, Johansson KA. Estimating impact of food choices on life expectancy: A modeling study. PLOS Medicine 19(2):e1003889, 2022. doi:10.1371/journal.pmed.1003889