One is to artificially add some natural nutrients that are not found in food according to the requirements of the national standard "Hygienic Standard for the Use of Food Nutrition Enhancers"; Or one or more components inherent in food can be extracted through certain processes (such as separation, rectification, ion exchange, adsorption and leaching).
The other is that several original nutrients in a food are artificially added because they cannot meet the nutritional needs of special people, thus changing the content of nutrients; Or one or more nutrients are partially removed in some way. For example, iron-fortified candy contains a certain amount of natural iron salt, but the content is very small, only 0.6 mg/ 100 g. Adding a certain amount of iron salt to it can adapt to anemia patients caused by iron deficiency. This belongs to changing the proportion of natural nutrients in food.
Extended data:
Some sources of raw materials for special diet:
1, chitosan
Chitosan is a natural animal edible cellulose extracted from crab and shrimp shells, and its safety is similar to that of sugar. Chitosan is regarded as the sixth life factor after protein, fat, sugar, vitamins and minerals in European and American academic circles. It has certain effects on rheumatism, rheumatoid arthritis and gout, and is often accompanied by chronic joint inflammation such as bone and joint tissue.
2, shark cartilage powder
Shark cartilage powder is rich in four kinds of compound active proteins and effective components, such as chondroitin sulfate and aminopolysaccharide, which are very similar to human bone matrix structure. Supplementing nutrients and nutrients in bones and joints and increasing bone density have a significant effect on bone softening and injury, especially osteoporosis. Improve the metabolism of articular cartilage, help remove waste in joints, reduce the accumulation of cholesterol, and prevent the occurrence and development of complications of osteopathy; Reduce the impact and friction between joints in action.
3. Taurus
Taurine is a special amino acid, which is the most abundant in marine shellfish and is an essential nutrient for human body. Has the effects of resisting atherosclerosis and preventing hyperlipidemia and cerebral thrombosis. Taurine accounts for 50% of cardiac amino acids, which has obvious protective effect on ischemic myocardial cells and inhibits the occurrence of arrhythmia. Taurine provides a new method for treating viral myocarditis.
Baidu Encyclopedia-foods for special dietary uses
Baidu encyclopedia-special dietary food