is prepared by adding various synthetic flavors, coloring agents, sweeteners and acidulants to thickening agents (sodium alginate, agar, edible gelatin, carrageenan, etc.). Although they come from seaweeds and terrestrial plants, they are treated with acid, alkali, bleaching and other processes during the extraction process, so that their original vitamins, inorganic salts and other nutrients are lost. Sodium alginate, agar, etc. belongs to the dietary fiber category, but excessive intake will affect the body's absorption of fat, protein, especially iron, zinc and other inorganic salts due to the combination of insoluble mixtures, reducing the human body to iron, zinc and other trace elements absorption. Synthetic flavors, generally more by esters and aldehydes chemicals dissolved in alcohol formulated. Pineapple jelly flavor, mainly added to the ethyl butyrate-based synthetic flavors; apple jelly contains isoamyl ester; banana jelly contains amyl butyrate and so on. The bright color of the jelly is the result of the addition of artificial coloring agents. These artificial coloring agents, coal tar as raw material by chemical synthesis, these substances have no nutritional value to the human body, eat more than beneficial, and even a certain degree of toxicity. Jelly

According to the sugar added 15%, each - a 15 grams of jelly in the body of the heat produced by 8.93 kcal, while the average adult daily caloric supply of about 2,500 kcal, so jelly in the body of the heat accounted for a very low percentage.　Jelly made of fruit juice and pulp, retaining most of the nutrients in the raw materials, such as minerals, soluble dietary fiber and vitamins, but in the production and processing will also cause some loss. Therefore, do not think that eating jelly can replace fruit.　Many jelly products also claim that they have added calcium and other nutrients, but do not easily believe that eating it will play a role in calcium supplementation. As a result of the jelly contains a lot of dietary fiber, resulting in its digestion in the human body is very fast, added nutrients will soon be lost with the body's metabolism, the effect of supplementation is not very good.