Uncomfortable Weight Loss Comments

I went to a restaurant with my mom and teen aged daughters. It wasn’t a meal time for me, so got something to drink and did not eat. My mom makes comments sometimes that I know are a reflection of her issues with food and body image. The comment that day was that I am thinner because I do not eat. This is not true and I ignored it, but I wondered if I should have corrected her? I am health conscious and am offended at the suggestion that I would starve myself. But it feels personal, and I don’t really want to get into it with her. Thoughts?