The following are the calories of the above vegetables, calculated per 100g (because nutritionally it is 100g, after all, no one eats 1kg at one time, and even three meals a day may reach 1kg. It takes three calculations to know the energy intake ratio of each meal, so as to evaluate whether the intake is reasonable): Lettuce. 13kcal, if calculated (according to100g):100 * 94% *13 = 47.7144kj, that is, 12.22Kcal, the following calculation is made. Spinach: the energy generated is 837KJ, and 200kcal tofu is divided into lactone tofu and ordinary tofu: lactone tofu: edible part 100%, the energy generated is 205 kJ, ordinary tofu: edible part 100%, and the energy generated is 339 kJ, and mung bean sprouts: edible part1. 18 kcal cucumber: edible part 100%, energy production 105KJ, 25 kcal onion: edible part 90%, energy production 163 KJ, among the energy above 39 kcal, KJ is the international unit.