Red meat like steak is way healthier than dairy. Dairy is terrible for you lol
So would multivitamin supplements aid in getting the micronutrients?
Yes, but the thing to remember with that is that it's a supplement, it shouldn't just be your main source of micronutrients. If you need to fill in some gaps that what you should use it for, but you can also get the specific micronutrient that you aren't getting and take that instead.