[definitelymaybe]

How is 100grams excessive. I know excessive amounts are bad.

I would only say this would be an issue if you are eating 3 grams per pound on a diet that lacked calcium.

Vitamin C in excessive amounts above 2 grams a day also has big list of negative side effects. Does that mean we shouldn't take 300mg?

Never said 100 grams was excessive. Depends on your weight, diet, health, activity level, etc. I simply pointed out that Emily Loretta wasn't off target in putting a general target point for protein at 50, for an average woman.