Red wine contains a number of compounds such as flavonoids, resveratrol and Proanthocyanidins which present unknown benefits. Some studies have suggested that polyphenols found in red wine are responsible for the adaptive response to physical activity resulting in an increase in cardiovascular fitness. Consumption of one glass per day is also linked with a reduced risk of heart disease and dementia; two-three glasses per day shows no negative effects either. In addition, some research suggests that it might even help with weight loss. Sweet wine can come in different styles including those that are light and creamy, like a port or an Italian Dolce. The alcohol content is typically between 10% – 15%. Dry red wine, on the other hand, contains 12% to 20% alcohol per volume and is all about acidity. With lower levels of sugar, dry red wine often has higher levels of tannins and potassium (salt). The less sugar you consume, often is considered better for your health.