The benefits of grape seed extract may include healing wounds, improving bone strength, preventing skin cancer, cardiovascular benefits, reducing edema and preventing cognitive decline, states Medical News Today. Grape seed extract contains antioxidants, which are useful in protecting cells from degeneration and disease prevention, reports WebMD.
In addition to antioxidants, grape seed extract is very rich in oligomeric proanthocyanidin complexes, which can aid in nerve damage, atherosclerosis, macular degeneration, and preventing cancer, notes WebMD. Grape seed extract is retailed as a liquid supplement, or as tablets or capsules, generally in doses of 50 to 100 milligrams. Other potential benefits of grape seed extract include relieving chronic venous insufficiency, and helping with high cholesterol as well as eye conditions related to diabetes.
Though with limited evidence to support its effectiveness, grape seed extract is used to treat or to relieve Alzheimer disease, hemorrhoids and oxidative rancidity, according to University of Maryland Medical Center website. For diabetes, grape seed extract may help in blood sugar control. This extract also is reported to improve night vision, protect collagen and elastin in the skin for anti-aging, and protect against bacterial pathogens. Grape seed extract is considered safe but can have several side effects, including scalp itching, headache, and nausea. It is recommended that a patient consult with his or her doctor before taking this extract, and people with the grape allergy should avoid taking grape seed extract.