The importance of lutein and zeaxanthin for eyes has been backed by scientific research.

One paper, published in Nutrients journal, says: “Numerous studies have identified lutein and zeaxanthin to be essential components for eye health.

“Lutein and zeaxanthin are carotenoid pigments that impart yellow or orange colour to various common foods such as cantaloupe, pasta, corn, carrots, orange/yellow peppers, fish, salmon and eggs.”

The healing properties of pumpkin

Mr Lockwood said: “In addition to beta-carotene and the vitamins that pumpkins offer, iron and folate strengthen the immune system and speed up the healing process of a wound.