Sadly, no one cares about ANYONE'S protein intake until they hear they are vegan or vegetarian I've noticed. I know many people who eat meat who have terribly deficient diets, who get half the protein I do despite their diet containing eating meat, dairy, and eggs. (How? I'm not sure but I've seen it many times!)

There are many times I've gotten double the protein that an average person needs. Just last week I was shocked when I saw my protein total at the end of the day was 151g of plant protein. There's no such thing as a protein deficiency UNLESS you're not eating enough calories overall. The average adult only needs 46-71g of protein depending on gender, etc according to WebMD and other sources are close in recommendation. Also note that these "recommended amounts" are given with a safety margin to ensure adequate amounts. On the other extreme, many people also get much, much more than they need.

That doesn't mean you're lacking.

Just refer her to the documentary "Forks Over Knives" which is on Netflix or can be downloaded. It explains the various health benefits of plant-based whole foods diets, and also reinforces the fact that we only need about 10-15% protein in our diets which is easily acquired from plant foods. It also breaks the protein myth and other various myths (such as milk being great for your bones, etc).