Consuming Omega-3 Fats from Fish and Supplements Lowers Mortality by One-Third

Health researchers have known for some time that eating fish regularly provides health benefits to help protect against cardiovascular disease, stroke and overall mortality. The primary long-chain fats, DHA and EPA have been shown to improve innate immune response by stimulating the effectiveness of B cells to lower systemic inflammation. Until recently, scientists have not been able to determine the impact of omega-3 fats on risk reduction for specific diseases or decline in mortality.

Researchers from the Harvard School of Public Health and the University of Washington, publishing the results of a study in the Annals of Internal Medicine have found that older adults who have higher blood levels of omega-3 fatty acids, commonly found in fatty fish and seafood, may be able to lower their overall mortality risk by as much as 27 percent and their risk of dying from heart disease by about 35 percent. Older individuals with the highest levels of omega-3 fats in their blood lived an average of 2.2 years longer than those with lower levels.

Eating Fatty Fish or Fish Oil Supplements Dramatically Lowers Risk from a Fatal Heart Attack

The study is regarded as the first to assess how serum blood levels of DHA and EPA omega-3 fats relate to total mortality and specific causes of mortality in a general population. Study author, Dr. Dariush Mozaffarian commented “Although eating fish has long been considered part of a healthy diet, few studies have assessed blood omega-3 levels and total deaths in older adults… our findings support the importance of adequate blood omega-3 levels for cardiovascular health, and suggest that later in life these benefits could actually extend the years of remaining life.”

To conduct their study, researchers examined sixteen years of data from about 2,700 U.S. adults, aged 65 or older, who participated in the Cardiovascular Health Study. All participants were healthy at the start of the study, and during follow up each had blood drawn, underwent physical exams and diagnostic testing, and were questioned about their health status, medical history, and lifestyle. Blood samples were tested for all omega-3 components (DHA, EPA and DPA) at the study outset and during follow up.

Eat Fatty Fish Three Times a Week or Supplement Daily to Slash Hear Disease Risk Factors

After adjusting for demographic, cardiovascular, lifestyle, and dietary factors, the scientists found that all three fatty acids combined were associated with a significantly lower risk of mortality (27 percent). When broken down by type, the researchers found that high DHA blood levels were associated with a 40 percent reduction in death from coronary heart disease. EPA and DPA were most strongly linked with lowered risk for stroke death and EPA significantly reduced non-fatal heart attack risk.

The team determined that the largest benefit was increasing omega-3 fat intake from a very low level to 400 mg per day. Dr. Mozaffarian concluded “The findings suggest that the biggest bang-for-your-buck is for going from no intake to modest intake, or about two servings of fatty fish per week.” Past research studies have determined that all individuals with no risk factors for heart disease should consume fatty fish three times per week or supplement with 1,200 mg fish oil daily. Those with multiple risk factors should increase intake to 2,400 mg combined EPA/DHA daily to minimize heart disease risk and extend lifespan.

Excess Salt Consumption Implicated in Millions of Heart Disease Deaths Worldwide

New cases of cardiovascular disease continue to mount in the US and worldwide, making this the leading killer of men, women and children in western cultures. Enlightened, health-conscious individuals now understand that heart disease is not only preventable, but also treatable in all but the most advanced stages. Lifestyle modifications including elimination of processed and fried foods, smoking cessation, stress reduction and adequate physical activity are among some of the changes that promote heart health and dramatically lower future disease risk.

Excess Dietary Sodium Increases Blood Pressure, Dramatically Raising Incidence of Heart Attack and Stroke

Excess salt consumption from synthetic salt products is a known risk factor for early heart disease, but researchers now report that sodium, largely coming from the disproportionate amount of processed foods that many people eat, is killing millions around the globe. Scientists from the Harvard Medical School and the Harvard School of Public Health now report the result of their research that found how eating too much salt contributed to 2.3 million deaths from heart attacks, strokes and other heart-related diseases throughout the world in 2010, representing 15 percent of all deaths due to these causes.

Researchers presented their findings to the American Heart Association's Epidemiology and Prevention/Nutrition, Physical Activity and Metabolism 2013 Scientific Sessions. Lead study author, Dr. Dariush Mozaffarian commented “National and global public health measures, such as comprehensive sodium reduction programs, could potentially save millions of lives.” To conduct their study, scientists analyzed data from 247 surveys of adult sodium intake, sorted by age, gender, and region spanning 50 countries over a 20 year period.

Lower Daily Salt Intake to 1,000 mg or Below to Limit Vascular Disease

The team then determined how the amount of sodium people were consuming was affecting their risk for cardiovascular disease in a large cohort of 107 randomized trials that determined the impact of sodium consumption on elevation of blood pressure. They determined that an optimal daily sodium intake of 1,000 mg was optimal. The current target in the US for adults is 2,300 mg per day, and many people who eat regularly at fast food restaurants and prepare meals using processed and refined foods can consume 3,500 to 5,000 mg per day, placing them at considerable risk for chronic vascular disease.

Researchers determined that nearly one million deaths occurring during the study period were due to excessive sodium consumption. This represented forty percent of all deaths recorded, as sixty percent occurred in men and forty percent in women. The US ranked nineteenth out of the thirty largest countries where 429 deaths per million (one in ten) were attributable to excess sodium intake. Nutrition experts explain that added salt should always be from natural salts containing the full-spectrum of minerals that encourage healthy cellular metabolism. Eliminating canned and refined food consumption, and closely monitoring processed salt usage could prevent the early demise of millions worldwide over the next decade.