I did this, she won't lift but is getting into the cardio thing. I can't see how anyone could do an hour on the treadmill, but more power to her. She usually buys vitamins and such, but she is now taking fish oil caps and supplementing with protein. I guess when she saw that All The Whey had a women's line then protein powder became a good thing.
The biggest benefit to having her on the team now is that food shopping is easier than ever. She will gladly eat sweet potatoes, brown rice, and whole wheat pastas with me and has grown to love chicken breasts and lean cuts of meat. I can't get her into too much fish yet, but we're getting there. makes my life much easier than when we had two different types of food in the house, ice cream, cookies, and pizza were too tempting for me.