That 5lbs for every inch over 5' puts me at 115. The weight charts in 17 Magazine when I was a teenager said the same thing. Wow, that's really super light! I once had a boyfriend who picked me up and he was like woah! He almost dropped me. He had no idea I was so heavy. Iron for bones, yeah. I totally relate to that.
Yet even if I use that weight as my target, it's way more fat than I'm able to eat on those calculations. Keeping the protein low is kind of a challenge, too. I tend toward about 100g on most days, and as low as 50 on others. I kind of don't care though because I can feel the effects of the low carbs anyway. I've been keeping them below 20 net carbs most days.
I really don't feel like I'm missing anything vitamin-wise. If anything, I'm actually getting a better class of vegetables and a bigger variety of things because I have to get creative within the limitations. Pesto was a recent thing, having nuts, olive oil, concentrated greens. Plus then there's all the odd meats like bone broth, bone marrow (if you can call that a meat), tongue, liver, pig's tail, kidney (ew) and the common ones like salmon with bones and skin. I can't say I'm worried about vitamins at all.
Female, 5'3", 50, Max squat: 202.5lbs. Max deadlift: 225 x 3.