蛋白质、脂肪、糖类、微量元素。维生素和水是人体生命活动必需的营养成分，通称为六大营养素。70年代以来，脑心血管疾病、直肠癌、肥胖症和糖尿病等已成为人类健康的主要杀手，这与膳食纤维摄入不够有关。因此，医学界确认了膳食纤维为第七营养素，是人类健康必需的营养物质 Protein, fat, sugar, trace elements. Vitamins and water are essential nutrient components of human life and are commonly known as the six major nutrients. Since the 1970s, cardiovascular disease, rectal cancer, obesity and diabetes have become the major killers of human health, which is not related to dietary fiber intake. Therefore, the medical profession has confirmed that dietary fiber is the seventh nutrient and is a necessary nutrient for human health