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The Benefits of Replacing Saturated Fat with Vegetable Oils? Absolutely None!

By Dietdoctor @DietDoctor1
The Benefits of Replacing Saturated Fat with Vegetable Oils? Absolutely None!

The recommendation to replace saturated fat with vegetable oils is rebutted by a meta-analysis, which finds zero benefits when it comes to heart disease risk:

Available evidence from adequately controlled randomised controlled trials suggest replacing SFA with mostly n-6 PUFA is unlikely to reduce CHD events, CHD mortality or total mortality. The suggestion of benefits reported in earlier meta-analyses is due to the inclusion of inadequately controlled trials. These findings have implications for current dietary recommendations.

The "implications" basically are that the current dietary recommendations are wrong, rotten at the core, and need to change.

Nutrition Journal: The Effect of Replacing Saturated Fat with Mostly N-6 Polyunsaturated Fat on Coronary Heart Disease: a Meta-Analysis of Randomised Controlled Trials

The findings are not new, several meta-analyses have come to similar conclusions. One thing is quite interesting in this paper however. The only support for the idea that saturated fats are bad comes from older uncontrolled trials, where other things in the diet were changed as well (e.g. less sugar). In controlled studies where the only thing changed is less saturated fat (and more unsaturated fat instead) the benefit is... nothing at all.

The bottom line? Enjoy your butter, it's perfectly healthful.

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