I do know that there are BSc in nutrition, but I was thinking that studying Biology, which is the basis of Nutrition and a lot of other sciences, could give me more preparation.
Certainly, when I studied biology, it was mandatory to take a few courses in nutrition along the way. Those courses were great, very informative, but I felt they didn't provide me with enough value. Prior to taking those courses, I was already well-versed and interested in nutrition. I knew what was considered healthy and nutritious, and kept up to date with the trends. Because of this, the courses I took only reinforced what I already knew personally, and from what had already been taught in other courses.
I can't imagine what four full years of nutrition would be like. I'd assume it'd get boring real fast. At least with biology, you get to take chemistry, physics, and math courses along the way, and in the process get to see how all those fields all relate to one another. I took over ten math courses during my undergrad as a bio major. Today, I love mathematics even more than I do biology, so much so that I have a masters degree in mathematics! If it weren't for those math courses I took, I probably wouldn't have discovered this hidden passion of mine.
So to be short I would like to know if it's a good idea to start with a BSc in Biology and then do 2 separate masters in Human and Animal nutrition.
I'd start with a bachelors in biology, then enroll in a postgraduate masters program in nutrition.