The Longevity Diet: ‘How to live to 100 . . . Longevity has become the new wellness watchword . . . nutrition is the key’ VOGUE

by Dr Valter Longo

a protein-rich diet, which can increase muscle size, may not necessarily translate into increased muscle strength and that a periodic low-protein, low-sugar diet, alternating with periods of normal protein intake, may do more to generate new muscle cells (which we currently think has more to do with strength than size does) while promoting health.

^ this is nonsense, I suspect muscle physiology is outside of the author's area of expertise as there were a few references to muscle that were completely wring

30 grams should be consumed in a single meal to maximize muscle synthesis.

^ another example of incorrect references to muscle, this is wildly out of context. 30g of protein from a source with the right aminio acid mix like meat or whey protein will maximised muscle synthesis for about 3 hours. Not for the day. Also that type of protein isn't recommended on this diet, it would have to be much higher quantity of vegetable protein to get the same effect, something like 50g of wheat protein.

consuming 30 grams of protein in a single low-carbohydrate or very low-carbohydrate meal optimizes muscle

^ wrong again, the muscle synthesis is higher when the protein is consumed with carbs as higher insulin levels help the protein get absorbed in to the muscles