Wunschel I M, Sheikholislam B M
Diabetes Care. 1978 Jul-Aug;1(4):247-9. doi: 10.2337/diacare.1.4.247.
The cost and nutritional value (calorie, carbohydrate, protein, and fat content) of 108 regular products were compared with 101 dietetic products. The cost of dietetic candies, cookies, fruits, preserves/syrups, and puddings/gelatins was significantly greater (p less than 0.005, p less than 0.005, p less than 0.005, and p less than 0.025, respectively). Dietetic candies and cookies contained more calories than the regular ones. These differences were significant only for candies (p less than 0.005). In contrast, dietetic fruits and preserves/syrups had significantly fewer calories than the regular ones (p less than 0.005 and p less than 0.005 respectively). Dietetic puddings/gelatins were significantly less expensive and contained fewer calories than the regular products (p less than 0.005 and p less than 0.005, respectively). Dietetic ice creams were generally more expensive with varying amounts of carbohydrate content. Most dietetic products contained higher amounts of protein than regular food products. Since the dietetic products constitute only a fraction of total food intake, the differences in their composition have little or no effect on the relationship of nutrients consumed within a 24-hour period. Thus, in most cases the consumer receives little or no nutritional benefit from the higher cost of dietetic products.
将108种常规产品的成本和营养价值（卡路里、碳水化合物、蛋白质和脂肪含量）与101种营养产品进行了比较。营养糖果、饼干、水果、蜜饯/糖浆和布丁/明胶的成本显著更高（分别为p<0.005、p<0.005、p<0.005和p<0.025）。营养糖果和饼干的卡路里含量比常规产品更多。这些差异仅在糖果方面显著（p<0.005）。相比之下，营养水果和蜜饯/糖浆的卡路里含量明显低于常规产品（分别为p<0.005和p<0.005）。营养布丁/明胶比常规产品便宜得多且卡路里含量更少（分别为p<0.005和p<0.005）。营养冰淇淋通常更贵，碳水化合物含量各不相同。大多数营养产品的蛋白质含量高于常规食品。由于营养产品仅占食物总摄入量的一小部分，它们成分上的差异对24小时内所摄入营养素的关系几乎没有影响。因此，在大多数情况下，消费者从营养产品较高的成本中几乎得不到或根本得不到营养益处。
