New Review Paper on Dietary Fat and Heart Disease Risk

By -
A new review paper on dietary fatty acids and heart disease risk was just published by Dr. Rajiv Chowdhury and colleagues in the Annals of Internal Medicine-- one of the top medical journals (1).  The goal of the paper is to comprehensively review the studies evaluating the effect of dietary fatty acids on heart (coronary) disease.  The review covers observational and intervention studies pertaining to saturated, monounsaturated, trans, omega-6 polyunsaturated, and omega-3 polyunsaturated fats.  The paper is notable for its comprehensiveness (inclusion criteria were very lax).

Here is a summary of the results:

  • In observational studies that measured diet, only trans fat was related to cardiovascular risk.  Saturated, monounsaturated, and polyunsaturated fats were unrelated to risk.
  • In observational studies that measured circulating concentrations of fatty acids, long-chain polyunsaturated fatty acids (DHA, DPA, EPA, AA) were associated with lower risk.  The dairy-fat-derived margaric acid (17:0) was also associated with lower risk.  No other fatty acids were related to risk, including trans fatty acids.
  • In controlled trials, supplementation with omega-3 or omega-6 fatty acids did not alter risk.
The authors conclude:
In conclusion, the pattern of findings from this analysis did not yield clearly supportive evidence for current cardiovascular guidelines that encourage high consumption of polyunsaturated fatty acids and low consumption of saturated fats.  Nutritional guidelines on fatty acids and cardiovascular guidelines may require reappraisal to reflect the current evidence.
My view
Read more »

Comments

Post a Comment

Popular posts from this blog

Case Profile: Edgar Cayce

By -
Image
Edgar Cayce (1877-1945) became known as an American mystic and "psychic diagnostician" healer following hypnotic sessions where he would go into a trance and his body would be used as a channel.   The communicating Intelligence would speak in plurality, usually beginning a 'reading' with a statement such as "We have the body . . ." and finishing upon saying "We are through for the present."  I first learned about Cayce through reading Jess Stearn's biographies Edgar Cayce — The Sleeping Prophet (1967) and A Prophet in His Own Country — The Story of the Young Edgar Cayce (1974).  The first biography to be written about Cayce is There Is a River: The Story of Edgar Cayce (1943) by Thomas Sugrue, whose book heightened public understanding about Cayce during the final years of his life.  Sidney Kirkpatrick's Edgar Cayce: An American Prophet was published in 2000. Since 2005, I've occasionally studied portions of the extant 14,306 Cayce
Read more

Feedback in Three Steps

By -
© 2003, Coert Visser As a manager you have just led a meeting. John brought forward a proposal to implement a Customer Relationship Management (CRM) system. He did this convincingly and enthusiastically but seemed to leave very little room for his colleagues Michael and Peter to respond. You want to talk to John about this...but how? Feedback is essential Giving and getting feedback is essential. The fact is, no matter how hard we try, we don’t always automatically perform excellent. We need information from others to know what is expected from us, how others perceive us, what we do well and what we should do better. Sometimes others have more expertise or skills, they look at your behavior from a different angle, and they may have access to different information. When feedback functions well in an organization, people are interested in signals about the effects of their behavior and they constructively correct each other. Fantastic! But now the less rosy daily practice.….. Feedback ca
Read more

Esoteric Aspects of Edgar Cayce's Life

By -
Image
Gladys Davis, Hugh Lynn Cayce (right) and Harmon Hartzell Bro were among the members of this A Search for God study group meeting at A.R.E. Headquarters at Lake Holly in 1950.  This photo is from Edgar Cayce's Photographic Legacy (1978) compiled by David M. Leary. Some of Edgar Cayce's psychic (channeled) readings diagnosed and prescribed for people's physical ailments and disturbances.  These were described by Thomas Sugrue in There Is A River (1942) as presenting "cases, hundreds and hundreds of them, wherein the treatments have been faithfully followed, and the predicted results have been achieved." When information that was sought wasn't successfully forthcoming (such as locations for lost treasure or oil wells), Cayce and his associates were baffled.  These circumstances are chronicled in the book The Outer Limits of Edgar Cayce's Power (1971) by Edgar's sons Edgar Evans Cayce and Hugh Lynn Cayce.  One chapter, "Readings for the Dead,"
Read more