One of these Abstinences, rigorously and universally observed in Egypt, was that from Beans - Antonio Cocchi

And as we find, on the other hand, that Pythagoras made no Difficulty of eating them, and that he extended his Prohibition concerning Food even to other kinds... also to old Cocks, plowing Oxen, and many other Substances

His two only Meals in a Day, equivalent to our Collations, were for the most Part of Bread only...

The vulgar opinion, then, which, on health reasons, condemns vegetable food and so much praises animal food, being so ill-founded, I have always thought it well to oppose myself to it, moved both by experience and by that refined knowledge of natural things which some study and conversation with great men have given me. And perceiving now that such my constancy has been honoured by some learned and wise physicians with their authoritative adhesion, I have thought it my duty publicly to diffuse the reasons of the Pythagorean diet, regarded as useful in medicine, and, at the same time, as full of innocence, of temperance, and of health. And it is none the less accompanied with a certain delicate pleasure, and also with a refined and splendid luxury, if care and skill be applied in selection and proper supply of the best vegetable food, to which the fertility and the natural character of our beautiful country seem to invite us.