The most commonly eaten part of the octopus is the arms, and sometimes the mantle (head area).
Small octopuses are eaten whole. Contains plenty of B vitamins, potassium and selenium. Also high in taurine and iron.
Expert says: Taurine is an amino acid made in the body. It helps reduce cholesterol from blood vessels and may help with the prevention of heart disease - although there are no conclusive studies backing this up.
It also has a calming effect on the nervous system so octopus could be a good way of de-stressing at the start of a holiday.
Around one in 20 of us may be suffering from iron deficient anaemia - and octopus flesh is a good source of iron.
What’s a portion? An 85g serving contains 140 calories and no saturated fat at all.
When to avoid: Older and larger octopuses are tough to eat if not prepared properly.