三年困难时期,面对普遍的缺粮问题,中共中央号召全国城乡人民开展了一场轰轰烈烈的代食品运动。在农村,代食品的原料主要是农作物的秆、叶、皮等和采集到的野生植物;城市的代食品生产则以小球藻和合成类代食品为主。代食品运动是一项重要的救灾度荒措施,但代食品在从精神上缓解人们对饥饿的恐惧方面所起的作用要比它在填充肚皮方面的作用更大一些。 In the difficult three-year period, facing the general problem of food shortages, the CPC Central Committee called on the vigorous food-for-food movement among people in both urban and rural areas across the country. In rural areas, raw materials for food are mainly stalks, leaves, skins and other wild plants collected in the cities. In the urban area, the production of food substitutes mainly uses chlorella and synthetic foods. Food-for-food movement is an important measure of relief from famine, but acting on food alleviates the fear of hunger more than it does on filling the belly.