Concentrated sweets are high-sugar foods, such as soda, syrup, jam, candies, corn syrup, honey, molasses, jellies and cookies. Any food that contains simple sugars is also considered a concentrated sweet. These foods are digested quickly, and glucose is released into the bloodstream within a few minutes of consumption.
Eating too many concentrated sweets can increase blood sugar rapidly, which is why concentrated sweets are not recommended for those suffering from diabetes or for those looking to lose their weight. Alternately, such people are encouraged to eat complex carbohydrates, which release sugar slowly, and fresh fruits and vegetables, which are high in fiber.