Do you eat grapes and discard the seeds? What a waste! According to Prof Dr Ir Ali Khomsan, a professor of Bogor Agricultural University Community Nutrition, grape seeds are rich in pycnogenol, an active compound that counters heart attack. This compound strengthens collagen that functions to  repair blood artery structure and make it malleable. A fragile blood artery enables the fat and cholesterol depositing easily in it. Eventually, it will result in arteriosclerosis, an early symptom of heart attack. To hinder it, consume 12—16 grapes once in 3—4 days.***