Whats the difference between Natural Whole Food Vitamins and Synthetic Vitamins?

Studies show natural vitamins from food have up to 4x better absorption than synthetic vitamins. It is theorized that this is partly due to the variety of nutrients and enzymes in food.* *Thiel R.J., Natural Vitamins May Be Superior to Synthetic Ones. Medical Hypotheses, 2000; 55(6):461-469; https://pubmed.ncbi.nlm.nih.gov/11090291/