A construction worker can't accurately measure the consumption, after all, the workload is different every day. Judging from the standard bricklayer and carpenter, the daily concentrated workload is about 7 hours, which is almost 150 kcal per hour, which is about 1000 kcal. If life is similar, you will be hungry for 5 hours after eating! If it is a coolie, 200 calories per hour, about 1300 calories a day! If you say that it is in line with the consumption of weight loss, it is wrong. Because working for a long time will seriously hurt the body, especially the muscles, so you need more nutrition and protein, and you will naturally consume more calories! After all, all you consume is 1/2 ~ 1/3, otherwise you will be malnourished and thin.