chess games
Bobby Fischer ate meat, cheese, hardboiled eggs and herring. Drank ice water, tomato juice and cola.
Boris Spassky ate sandwiches and drank coffee and orange juice.
Therefore
chess games, during their epic World Championship Chess Tournament in Iceland in 1972, Spassky probably consumed more carbohydrates than his American challenger, from eating two slices of bread along with whatever was in the middle of his sandwiches. He spiked his blood sugar level with a high glycemic index drink and squeezed his energy reserves with caffeine.
