Task: Sentiment Analysis
Input (English): Exchanges are the foundation of weight and blood sugar managment. . There is nothing more basic for weight and blood sugar management than the food exchanges. They are called exchanges because the foods in each group can be exchanged with each other and still supply a similar amount of calories, proteins, carbohydrates, fats and other nutrients. "The Official Pocket Guide to Dieabetic Exchanges" is an excellent resource for  describing the nature and benefits of the exchanges.    I have been a diabetic since the age of 50. It is certainly easier to use the exchange system then laboriously counting calories and carbohydrates. They give us a short hand method of coming up with close approximations.     One thing that can also be of benefit to diabetics is the glycemic index which measures the impact of various carbohydrates on our blood sugar level. Glucose is given a value of 100. All other foods are ranked according to the percentage rise they cause as compared to glucose. For example, apple juice has a glycemic index of 40. This means that a serving of apple juice containing 25 grams of carbohydrates would cause a blood sugar rise that is 40 percent of that which would be caused by 25 grams of pure glucose.    Related to the glycemic index is the glycemic load which applied the glycemic index to serving sizes. To calculate the glycemic load the grams of carbohydrates (less the fiber) is multiplied by the glycemic index expressed as a percentage. An exchange of apple juice has 15 grams of carbohydrates. Multiplying this by 40% (glycemic index of 40) yields a glycemic load of 6. Now lets compare this to 15 gm of watermelon. Watermelon has a glycemic index of 72 which is higher than table sugar. The glycemic load of watermelon is 11 (15 x .72 = 11). Thus the impact of watermelon on our blood sugar is almost twice for the same level of carbohydrates. Fortunately, a half of watermelon only has six grams of carbohydrates as compared to a half cup of apple juice which has 14. Measured on a volume basis the apple juice actually has a higher glycemic impact. No such luck with a baked potato which has a glycemic index of 85. A half cup of baked potatoes has 38 grams of carbohydrate. This yields a glycemic load of 32 (38 X .95 = 32).    Determining the glycemic impact of foods does require more effort than just counting exchanges. But by getting involved in the details I have been able to lose nearly 80 pounds and am able to manage my blood sugar levels with diet and exercise. This has certainly been a worthwhile effort for me.  I am sure that it would be for others.    Good Eating
Output (English): POS