RDA for protein is 0.8g/kg (~0.36/pound), so about 65g in your case if you're sedentary. 1g/pound is an old bodybuilder myth according to this article [0] which goes through various studies: "many review papers have concluded 0.82g/lb is the upper limit at which protein intake benefits body composition". This is for strength athletes and bodybuilders, mind you: most people (even many athletes) need far, far less.

[0] http://bayesianbodybuilding.com/the-myth-of-1glb-optimal-pro...

> 1g/pound is an old bodybuilder myth according to this article

Except that every time I've ever seen/heard it from bodybuilders it has always been 1g per lean pound which fits pretty well with your 0.82 figure accounting for typical bodyfat percentages. So your article is arguing a strawman and they've been right all along.

You're right, I forgot about that. My main point was that parent is probably overdoing it (even if he/she were a bodybuilder), and this seems to be quite common.

What do you mean by overdoing it?

It's hard, although possible, to have too much protein.