I began studying food many years ago as I was compassionate of the animals that we slaughter for our sustenance. That led me to all kinds of info on the foods we eat. And that brought me eventually to where I am today. I read all labels, I read and research about food in general and I fully believe the old expression 'you are what you eat'.
So with respect to vitamins and all nutrients the very best way to get them is by assimilation from foods.
Vitamins and other nutrients are the fuel for our bodies to function, move, repair, and remain healthy and active. Vitamins are either water soluble or fat soluble which means that they are best assimilated when taken with one of those two catalysts. This makes a 'multi' ineffective in many ways because only some of the ingredients will actually be processed.
Also, some vitamins, such as the B-complex is best taken first thing in the morning on an empty stomach. Others are best taken with foods.
I am not an expert but I truly pay attention to my own body so learn as much as I can to live a long and healthy life. I encourage anyone to do the same. And it is paying off for me and will for you also. Nobody believes my age.