The general rule (but there can be exceptions), is to take oily fat soluble vitamins with food. This helps with absorption.
Vitamin B12 should be taken alone separately, on an empty stomach. Most people take it when they wake up in the morning about an hour before breakfast.
Most Bcomplex works best taken with breakfast... as they are energizing and may increase urine output. You don't want more urine at night-time.
Some things like acetyl carnitine have to be broken up during the day...for better absorption. The same goes for calcium. Lipoic acid also needs empty stomach, but you did not list these specifically and I offer just in case you ever use them.
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Weezie looking at petunias 8.25.2017
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