Swimming does burn calories at a rate of about 3 calories a mile per pound of bodyweight. If you weigh 150 lbs. and it takes you 30 minutes to swim one mile (1,760 yards or 1,609 meters), then you will be using about 900 calories in one hour.
Some studies suggest that compounds in grape seed extract may reduce edema (swelling) and help with symptoms of chronic venous insufficiency, but the evidence isnât strong. Grape seed extract may have some heart benefits, including lowering systolic blood pressure and heart rate. The lower heart rate may cause the decrease in systolic blood pressure. The extract had no effect on lipid levels such as cholesterol or C-reactive protein, an indication of inflammation in your arteries.
Oral grape seed extract is used in capsules or tablets usually containing 50 mg or 100 mg. Insufficient scientific information is known, however, about how long-term use of grape seed extract might affect health or any disease.rom Wikipedia, the free encyclopedia. Grape seed extracts are industrial derivatives from whole grape seeds that have a great concentration of vitamin E, flavonoids, linoleic acid and phenolic procyanidins (also known as OPC or oligomeric procyanidins).