The gist is you can live for a bit, while consuming massive amounts of food per day just to attempt to reach your required daily levels of vitamins and nutriets, and then eventually succumb to nutrient deficiency-based ailment.
So, could one counter both the required gorging and eventual death by taking a multi-vitamin that supplies everything you need to counter scurvy et al?
There’s a myriad of stuff (real scientific, yeah) in real food that are little-known nutritionally-speaking, but may very well be important for human health. No combination of present multivitamins will cover all of them. There’s evidence suggesting even the well-known micronutrients and antioxidants are far better taken up by the human body from real food as opposed to supplements.