Liquid "food" products from the unlikely sources of Abbott Laboratories and Nestlé S.A. offer quick calories in the heat of a race. The food giants respectively make Ensure Shakes and Boost Drink, which are bottled shakes often sold in a grocery store's pharmacy section and marketed toward the elderly and the infirm. But racers can poach grandma's chocolate remedies. Both drinks taste surprisingly good in the outback and provide easy-to-down energy at about 250 calories a pop. With some bonus protein and fat, these eight-ounce drinks have found a place in my pack.
Price: sold in six-packs for $8 to $10