My vitamin supplementation is rather high..this is due to malabsorption issues. B1, B6, and B12 in particular. I'm taking a triple dose chewable multivitamin, under Dr instruction, as well as 100 mg/day respectively B1, B6 and 1000mcg B12 sublingually. 200 mg Ca+/day and 2-2.5 grams protein/Kg body mass. C is at 1.5 grams/day. I have bloodwork done every 6 mos to monitor vitamin levels and dosage is calculated off of these blood tests. Thus far, I have no problems, and I hope to avoid complication like....oh, Pernicious Anemia, for example!
As to caloric needs, I have a workout schedule and can fairly accurately predict intake needs. I am probably monitored more closely than a million dollar racehorse!
Protein source is meat as well as whey supplementation and veg protein.