i am a paragon of perfect health, and i spend about $50/week on "groceries" - including things like toilet paper and toothpaste. that's probably around $40 on actual food. a naive extrapolation would be to $120 for three people, but you could save a little in bulk. and, a kid doesn't eat like a grown-up.

i'm the person he's talking about: i budget, i eye bargains, etc.

so, it's an under-estimate, certainly, but perhaps not by as much as some are claiming; $100 is probably not undoable.

and, what do i eat? it's on my vlog channel. daily fruit smoothies and a lot of spaghetti, with eggs every few days.

https://www.huffingtonpost.ca/2018/09/21/philippe-couillard-grocery-bill_a_23535545/?utm_source=spotim&utm_medium=spotim_recirculation&spotim_referrer=recirculation