“Meat is a good source of protein, vitamins and minerals, including iron, zinc and B vitamins. It’s also one of the main sources of vitamin B12,” notes the NHS.
According to the health body, eggs and fish are also good sources of protein, and contain many vitamins and minerals.
Oily fish is particularly rich in omega-3 fatty acids.
Protein can also aid weight loss, another key contributor to longevity.