Tired from ongoing disagreement with husband about son's (16) weight gain for football--normal?

Hi all,

Has anyone ever had to deal with a situation where they were able to "agree to disagree" on an ongoing parenting problem ?

Currently outnumbered two to one on what I consider a pretty hair-brained plan for my son (16) to add weight for football in the offseason in ways that I feel are not healthy or beneficial for him in the long run. Husband is a former player who disagrees with me, and son values his father and coach's perspectives on this much more than mine.

Thank y'all in advance! <3

EDIT to add more detail: It started off as 40 pounds but has gone beyond that.. his coach's "advice" essentially boils down to all calories are good calories, just be eating whenever you can . apparently it is normal for kids being moved to offensive line ?