Sun, Jan-10-16, 22:46
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Senior Member
Posts: 4,044
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Plan: Very LC, Higher Protein
Stats: 227/186/185
BF:
Progress: 98%
Location: Herndon, VA
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Quote:
Originally Posted by nwlifter
Right on, if a person's BG's are in a truly normal low area, then that at least really reduces or even negates the power of palmitate to harm. Plus, if your in Keto, I doubt your sucking down pounds of sugar to even 'make' the extra palmtiate anyway
But I'm thinking, a couple tablespoons a day, only good could come from that. I'm still losing blubber so for sure I want the good stuff flowing in me. Even eating a spoonful of virgin cold pressed coconut fat every day too, yum. bleh!
Heavy cream.. oh man I hear ya!
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I'm another one on keto, and I don't get too excited about consuming sources of palmitic acid, as one has to consider where the harmful SFA originates. Here are a few excerpts from an interesting article by Dariush Mozaffarian published in the Lancet related to Diabetes and Endocrinology:
http://www.thelancet.com/journals/l...0166-4/fulltext
Quote:
Although saturated fatty acids (SFAs) are undoubtedly biologically active, several complexities preclude oversimplified predictions of their health effects. First, although attention has historically focused on blood LDL cholesterol, SFAs affect many other physiological pathways, including other blood lipids and lipoproteins1 and glucose–insulin responses.2 Second, different SFAs exist, with chain lengths ranging from 6 to 22 or more carbon atoms, and they have varying biological effects. Third, the relative effects of these SFAs also depend on the comparison nutrient, for example, other specific fatty acids, types of carbohydrate, or proteins.1, 3 Fourth, dietary SFAs are obtained from remarkably diverse foods—red meat, poultry, processed meats, yoghurt, milk, cheese, butter, vegetable oils, and nuts, among others—that contain many other components that could modify their overall health effects. Finally, SFAs are derived not only from diet but also from endogenous synthesis (hepatic de-novo lipogenesis) in response to large, rapidly delivered doses of carbohydrate or total calories, which is especially important for even-chain SFAs (eg, 14:0 and 16:0).
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I highlighted his last sentence in bold. So, the question raised is whether the damaging SFAs come from the diet or are produced endogenously and indirectly from carbs. Good question!
The article continues:
Quote:
What are the implications of this study? First, these results add to growing evidence that dairy fat might reduce insulin resistance and type 2 diabetes,7 benefits that might be greatest for cheese and yoghurt.8 Further research is needed to establish whether odd-chain SFAs have direct physiological benefits or are merely correlates of other beneficial compounds in dairy fat or other aspects of dairy fat-rich foods, such as probiotics or fermentation.
Second, the results confirm previous evidence that tissue concentrations of even-chain SFAs are linked to metabolic dysfunction—palmitic acid (16:0) seems to be especially harmful in animal and in-vitro models—and that, as reviewed elsewhere,9 these SFAs are mainly derived from endogenous hepatic synthesis, driven by consumption of starch, sugars, and alcohol. Thus, the present findings support adverse metabolic effects of refined carbohydrates and sugars and could also indicate, at least in part, reverse causation: underlying baseline metabolic dysfunction would increase de-novo lipogenesis, hepatic steatosis, circulating amounts of even-chain SFAs, and the future development of type 2 diabetes. Notably, the careful evaluation of dietary correlates was crucial to avoid prior erroneous interpretations from EPIC that circulating amounts of even-chain SFAs provide inference on effects of their direct dietary intakes.10 Additionally, the present findings draw attention to the need for investigation of the intriguing and remarkably understudied very-long-chain SFAs, the determinants (dietary and metabolic) and health effects of which remain largely unknown.
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The author is requesting a review of the Dietary Guidelines due to these new, and still incompletely understood findings. I agree he has a good argument, as this is simply one of many good reasons to critically review/ rewrite the Dietary Guidelines. What we put in our mouths may be very different and have a different effect from the variant with the same name created by our metabolism.
Last edited by GRB5111 : Sun, Jan-10-16 at 22:57.
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