(3 mins) Transcript. Dr Greger's summary: "Despite promising autopsy and population data suggesting that inadequate magnesium intake is a risk factor for sudden cardiac death, it wasn't until recently that this was demonstrated in prospective studies."

(3 mins) Transcript. Dr Greger's summary: "Most men and women who die of heart disease, our #1 killer, die suddenly without any known history of heart problems. Nut consumption, however, has been associated specifically with decreased risk of sudden cardiac death, which may be due to magnesium, a mineral found predominantly in whole grains, greens, beans, nuts, and seeds."