Stevia and saccharin are both sweeteners you can use as sugar substitutes. Stevia is a natural sweetener and saccharin is an artificial sweetener. The Food and Drug administration has approved both sweeteners for general use in food and beverages.
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Stevia is a genus of approximately 240 species of plants native to South and Central America, with some species found in Arizona, Texas and New Mexico. According to the "Encyclopedia of Herbal Medicine,” the leaves of the Stevia rebaudiana plant are approximately 200 times sweeter than table sugar. Stevioside and rebaudioside are the glycosides responsible for the sweet taste of stevia. These glycosides are approximately 300 times sweeter than sugar. As a sugar substitute, stevia is generally a combination of the leaves, an extract of the leaves plus purified steviosides.
Stevia has uses as both a sweetener and as a medication. Since stevia does not have calories, and it is not made from sugar cane, individuals with a disturbed carbohydrate tolerance and diabetes can safely consume stevia. In 2008, the Food and Drug Administration recognized highly purified stevia as a safe general-purpose sweetener. The European Food Safety Authority concluded in 2010 that 5.5 mg steviol equivalents per kilogram taken twice a day did not have effects on blood pressure in either diabetics or nondiabetics. Additionally, the same doses did not affect glucose homeostasis in people with type 2 diabetes. The Food and Drug Administration’s Acceptable Daily Intake for stevia is 4 mg per kilogram of body weight per day for steviol glycosides.
Saccharin is an artificial sweetener. Its basic compound is sulfilimine. Saccarin is 300 times sweeter than sugar. Each teaspoon of saccarin contains 0 calories and less than 1 g carbohydrate. In the 1970’s, this sweetener carried a warning label due to suggestions, from animal studies, of a risk of bladder cancer associated with it. However, in 2000, the National Cancer Institute confirmed the safety of saccharin in humans and decreed that the sweetener does not cause cancer.
Many people find that saccharin has an aftertaste of lasting sweetness. Therefore, several manufacturers now mix saccharin with other artificial sweeteners to counteract this aftertaste. Additionally, saccharin does not induce a high glycemic response, meaning it does not raise your blood glucose levels. This is especially important for diabetics. Saccharin is also one of the artificial sweeteners approved for use during pregnancy.