With a high content of omega-3s, flaxseed oil is a great alternative for fish. WHfoods.org reports that flaxseed oil can lower blood pressure in men with high cholesterol. In a three-month study of 59 middle-aged men, those who took daily flaxseed oil supplements (with eight grams of the omega-3 fats, alpha-linoleic acid) experienced significantly lower systolic and diastolic blood pressure.
