Uses and Effectivity of Resveratrol
Potentially beneficial for:
- Hay fever. Using a nasal spray that contains Resveratrol three times a day for four weeks appears to lessen allergy symptoms in adults with seasonal allergy symptoms. A nasal spray containing beta-glucans and Resveratrol three times daily for two months may also reduce allergy symptoms in children suffering from seasonal allergies. 
- Obesity. Resveratrol intake from the mouth seems to help increase weight loss in people who are overweight and obese adults. But it cannot help to improve your blood cholesterol, glucose control or cholesterol, or other fats. 
Potentially not effective for:
- Heart disease. People who consume higher amounts of dietary Resveratrol appear to have a lower risk of developing heart disease than those who consume less. Resveratrol taken by mouth does not seem to increase blood cholesterol or blood fat levels, known as triglycerides, in people at risk of heart disease.
- High cholesterol. Resveratrol is a medicine that cannot raise cholesterol levels or blood fat, also known as triglycerides. 
- A set of signs increases the risk of developing diabetes, heart disease, or stroke (metabolic syndrome). Resveratrol taken by mouth does not affect the blood pressure, blood glucose, or cholesterol levels in people with metabolic syndrome.
- Fat accumulation in liver fat builds up when people drink less or not (non-alcoholic fatty liver disease, also known as NAFLD). Resveratrol is not taken by mouth to help improve liver function, scarring on the liver, and cholesterol levels in those with NAFLD.
There is much potential for Resveratrol to be used for many other purposes, but there is insufficient evidence to determine whether it is beneficial.
The Side Effects
When taken orally, most people consume Resveratrol in small amounts in food. Best Resveratrol supplements may be safely taken by mouth at doses up to 1500 mg for 3 to 6 months. More than 2000-3000 mg daily was safe for 2-6 months. However, these levels may trigger stomach problems. 
- Resveratrol can be used safely for up to 30 days when applied to the skin.
- Resveratrol can be safe for at least four weeks when sprayed onto the nose.
Special Safety and Health Precautions
- Breastfeeding and pregnancy: Resveratrol is safe when consumed in quantities in certain foods. However, during pregnancy and breastfeeding, the source of Resveratrol is vital. Pure Resveratrol exists in grape skins, juice, wine, and other food sources. Wine must not be used to obtain Resveratrol during pregnancy or breastfeeding. 
- Children consume small amounts of Resveratrol in food. However, there is insufficient reliable evidence to determine if swallowing in more significant quantities is safe. Resveratrol may be safe for children when sprayed on the nose for two months.
- Bleeding disorders may reduce blood clotting and increase the risk of bleeding for patients with hemorrhagic diseases.
- Resveratrol may act like estrogen hormone-sensitive conditions such as breast cancer, cancers of the uterus, endometriosis, ovarian cancer, or uterine fibroids. Avoid Resveratrol if you have any illness that could be aggravated due to estrogen exposure.
- Surgery: Resveratrol side effects may increase the risk of bleeding during and after surgical procedures. Stop using Resveratrol 2 weeks before the scheduled surgery. 
Best Resveratrol Supplement is most commonly used by adults at doses of 250 to 1000 mg daily by mouth for a maximum of 3 months. It is also used as a nasal spray. Consult a physician to determine if Resveratrol 1000 mg or Resveratrol 500 mg may be appropriate for your health.