I graduated UCB Nutrition B.S. also. I loved it. It is a great way to do pre-med if you find the material interesting. At my school, the nutrition department was a refreshing change from some of the other hard-core scienc majors. The science of Nutrition is quite challenging b/c it combines bio, biochem, physiology, chem, as well as economics, behavioral science. However, the people in the department were more laid back. There are more women, it is less competitive. Most professors let us call them by their first names. Nutrition Scientists are also foodies, so that's cool if you are too. There are the Nutrition bashers but that is b/c they are ignorant and like to inflate themselves. A nutrition major won't be easy, but will probably have fewer of the types of students who would bash others. I am a Nutritionist, so I have met Nutritionists from other schools and most tend to have had similar experiences like I described. Finding that major was the best thing that happened to me academically b/c I was so disgusted and discouraged by the attitudes of some students and even professors in other science disciplines.
So if you don't care about others' perception of your chosen major, then nutrition may be a good choice. It is practical and applicable. Moreover, since obesity is our nation's #2 cause of preventable deaths, and increasing, having nutriton knowledge should help you in the admissions process and youra career.
Content wise, it is a good review for the MCAT, especially b/c you review organ systems thoughroly. I also thinks nutriton science is a discipline forces you to attack problems in a way that may be beneficial in answering MCAT questions. I would elaborate, but I am falling asleep.