'Just how much protein do we need in our diets?'

The human race has survived this long without the benefit of protein water, writes Gillian Nelis

Chocolate whey isolate protein Pic: Getty

It’s in our chocolate bars. It’s in our yogurts. It’s in our smoothies. It’s even in our bottles of water. It’s protein, and when it comes to our obsession with it, there seems to be no end in sight.

You can now walk into a shop on any high street and buy a protein bar (€2.50), a bottle of protein water (€3.75), a high-protein yogurt (€1.30) and a litre of high-protein milk (€1.99).