A tinned store cupboard staple costing just 69 can reportedly slash blood pressure and cut inflammation – while also offering a welcome protein boost. The Fast 800 – a healthy lifestyle plan developed by the late Dr Michael Mosley – said that tinned tuna offered a healthy yet affordable health boost.

Packed with protein and omega-3 fatty acids, tinned tuna costs as little as 69p a tin from Asda, and could be cheaper still if bought in bulk. It is also versatlie and can be used in pasta dishes, on jacket potatoes or – as shown by the Fast 800 – as part of a healthy salad.

“A quick and convenient protein boost, tinned tuna is also a good source of omega-3 fatty acids. Olives and Feta add the extra yum to this quick & delicious lunch option,” the site said on Instagram.
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“At only 366 calories this salad has a whopping 30g of protein, helping you to feel fuller for longer.⁠ Tip: Aim for sustainably caught tuna and look for tuna in extra virgin olive oil.⁠”

Health food specialists Holland & Barrett backed up the claims, stating: “Tuna is an excellent protein source. Tuna is also very low in calories, making it an ideal food for those looking to maintain a healthy weight while keeping up their energy levels.

“Tuna is especially abundant in omega 3 fatty acids. They’re brilliant for the body and are thought to help lower cholesterol, boost brain function and improve eye health. It’s also an excellent source of vitamin B12. Tuna is rich in vitamin B12, a form of B vitamin responsible for helping the body form new red blood cells.

“The benefits of fresh and canned tuna are typically the same. However, fresh tuna is thought to contain slightly more protein. Nevertheless, tinned tuna is more affordable and lasts much longer.”

If you can stretch to buying tinned tuna in olive oil, that can make it even healthier. Harvard Health Publishing says: “Olive oil is high in monounsaturated fatty acids, containing about 75% by volume. When substituted for saturated fat, monounsaturated fats help lower your ‘bad’ LDL cholesterol.

“The health benefits of olive oil have been attributed to its antioxidant and anti-inflammatory properties. In fact, observational studies have shown a link between lower risks of cardiovascular disease, some cancers, and even dementia in people who consume higher amounts of olive oil than those who use little or none.”