Do not get me wrong! I love vegetables. But given that our backpack food is highly processed, the sure bet for daily vitamins is to take a supplement. My point is that I eat my 5+ servings of vegetables daily most of the year, and going without for a week or so has never compromised my health or energy levels. Electrolyte balance for me is much more important. Cytomax is near the top of my priority list - well above freeze dried vegetables. I prefer vitamins that are naturally a part of high calorie/low weight food, for example, whole grains and nuts. I also have had poor luck with fd fruit and vegetables- high priced and they inevitably end up crushed to dust. Bear cannister requirements certainly alter your backpack diet. Volume and crushability become key factors.