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Author Topic: Dietary fat guidelines have no evidence base  (Read 154 times)

Offline ChrisSmolinski

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Dietary fat guidelines have no evidence base
« on: October 28, 2018, 1701 UTC »
Dietary fat guidelines have no evidence base: where next for public health nutritional advice?


Introduction National dietary guidelines were introduced in 1977 and 1983, by the US and UK governments, with the aim of reducing coronary heart disease (CHD) mortality. The 2 specific dietary fat recommendations were to reduce total fat and saturated fat consumption to 30% and 10% of total energy intake, respectively.

Methods 4 systematic reviews (3 with meta-analysis) were undertaken to examine the evidence for these dietary fat guidelines: (1) randomised controlled trial (RCT) and (2) prospective cohort (PC) evidence at the time the guidelines were introduced; and (3) RCT and (4) PC evidence currently available. This narrative review examines all evidence collated.

Results The RCT and PC evidence available to the dietary committees did not support the introduction of the dietary fat guidelines. The RCT and PC evidence currently available does not support the extant recommendations. Furthermore, the quality of the evidence is so poor that it could not be relied on had it provided support.

Conclusions Dietary fat guidelines have prevailed for almost 40 years. The evidence base at the time of their introduction has been examined for the first time and found lacking. Evidence currently available provides no additional support. Public health opinion differed when the guidelines were introduced. Opposition to the guidelines is becoming more strident. Substantial increases in diet-related illness over the past four decades, particularly obesity and type 2 diabetes, indicate that a review of dietary advice is warranted.

https://bjsm.bmj.com/content/51/10/769
Chris Smolinski
Westminster, MD
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Offline Josh

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Re: Dietary fat guidelines have no evidence base
« Reply #1 on: October 28, 2018, 1755 UTC »
You see how effective this campaign was by the explosion of childhood obesity and diabetes.
Conveniently located near Vincennes Indiana.

Offline ChrisSmolinski

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Re: Dietary fat guidelines have no evidence base
« Reply #2 on: October 28, 2018, 1827 UTC »
You see how effective this campaign was by the explosion of childhood obesity and diabetes.

Low Fat was a stimulus program for the pharmaceutical industry.
Chris Smolinski
Westminster, MD
eQSLs appreciated! csmolinski@blackcatsystems.com
NRD 545 / netSDR / AFE822x / AirSpy HF+ / KiwiSDR / 670 ft horizontal loop / 500 ft northeast beverage / 270 ft west-south-west beverage / 300 ft south beverage / 43m / 20m / 10m  dipoles / Crossed Parallel Loop