It is prepared with thickeners (sodium alginate, agar, gelatin, carrageenan, etc.) added to a variety of synthetic flavors, coloring agents, sweeteners, acidulants. Although from seaweed and terrestrial plants, but in the extraction process after acid, alkali, bleaching and other processes, so that its 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 on the human body has no nutritional value, eat more than beneficial, and even a certain degree of toxicity.
According to the white sugar added 15% calculation, 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 from fruit juice and pulp retains most of the nutrients in the raw material, such as minerals, soluble dietary fiber and vitamins, but it also causes some loss in production and processing. Therefore, do not think that eating jelly can replace fruit.
Many jelly products also claim that which added calcium and other nutrients, but do not easily believe that eating it can play a role in calcium. Because 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