Page 3 of 6 FirstFirst 12345 ... LastLast
Results 21 to 30 of 51

Thread: Are there any scientific studies showing the negative effects from PUFA's? page 3

  1. #21
    magicmerl's Avatar
    magicmerl is offline Senior Member
    Join Date
    Apr 2012
    Location
    New Zealand
    Posts
    2,913
    Primal Fuel
    Too much is more than a couple of grams of each I think.
    Disclaimer: I eat 'meat and vegetables' ala Primal, although I don't agree with the carb curve. I like Perfect Health Diet and WAPF Lactofermentation a lot.

    Griff's cholesterol primer
    5,000 Cal Fat <> 5,000 Cal Carbs
    Winterbike: What I eat every day is what other people eat to treat themselves.
    TQP: I find for me that nutrition is much more important than what I do in the gym.
    bloodorchid is always right

  2. #22
    Drumroll's Avatar
    Drumroll is offline Senior Member
    Join Date
    May 2012
    Posts
    3,496
    Good points all, Omni. It may also be possible that the people you speculate about, because of their environment (colder weather, less sunlight in winter, etc.) may have had a particular increased need for PUFAs? Or more likely, the environment off-set the impact of them consuming excess PUFAs?

    If they were eating lots of caribou, seal, and whale fat though, would not that have been mostly saturated and monounsaturated, not PUFA fat? I see fish and shellfish as having a bit of PUFA but seals an whales are mammals which tend to have more saturated and monounsaturated fat in general.

    Lots to ponder on this one.
    Last edited by Drumroll; 04-14-2013 at 09:17 PM.

  3. #23
    Omni's Avatar
    Omni is offline Senior Member
    Join Date
    Jun 2012
    Posts
    929
    Don't know about whale blubber,
    But seal oil was mostly very long chain poly unsaturated and I read somewhere that the Inuit used it mainly for heat and light, and only ate it when nothing else was available.

  4. #24
    Omni's Avatar
    Omni is offline Senior Member
    Join Date
    Jun 2012
    Posts
    929
    Just found this on Minke whales:
    http://munin.uit.no/bitstream/handle...pdf?sequence=1
    Basically 60%Mono, 20% SFA, 20% PUFA (mostly O3)

    The MUFAs was the group of FA with the highest average percent in all three layers, with a sum varying from 60 to 65 % (Table 3). A sum of 18 to 22 % SFAs and 18 to 19 % PUFAs were found in the three layers.
    The relatative abundance of the individual FA varies a lot (Figure 7 and Table 3). The SFAs with the highest abundances are 14:0 and 16:0. The MUFAs with highest abundance are 16:1(n-7), 18:1(n-9), 18:1(n-7) 20:1(n-9) and 22:1(n-11). 18:1(n-9) has the highest abundance of all the 42 FAs. The PUFAs with highest abundance are 18:2(n-6), 18:4(n-3), 20:5(n-3) and 22:6(n-3). The MUFAs with 14, 16 and 18 carbon atoms had a higher percentage in the outer layer, except 18:1(n-11) which had the highest percentage share in the inner layer. The inner blubber had the highest share of MUFA with 20 carbon atoms, except 20:1(n-11) which has highest share in the outer blubber, and 22:1(n-11) which has it highest share in the middle layer. The FA 18:1(n-11) was found in all blubber layers (Table 3), but was almost not present in the FA composition of the prey (Table 4).

  5. #25
    Drumroll's Avatar
    Drumroll is offline Senior Member
    Join Date
    May 2012
    Posts
    3,496
    So, mostly mono fats, but not insignificant poly levels.

    Still, I know Inuits in Canada and Alaska are very often given exceptions the whale hunting laws due to consideration of their traditional diet and culture, so they probably eat their fair share of the stuff.

  6. #26
    picklepete's Avatar
    picklepete is offline Senior Member
    Join Date
    Mar 2013
    Location
    Minnesota
    Posts
    1,361
    Linoleic acid toxicity seems to be a real thing but IMO it's a little silly to consider almonds equivalent to the daily ocean of chips, miracle whip, ranch dressing, and bloomin onions that most eat. Quantity matters, and almonds contain other stuff.

    How often are people actually using almond flour? I use a little on holidays usually cut with some coconut or tapioca and treat celebratory desserts as such. Everyone knows that a cake is not a weekday breakfast (I hope?)

  7. #27
    Drumroll's Avatar
    Drumroll is offline Senior Member
    Join Date
    May 2012
    Posts
    3,496
    L
    Quote Originally Posted by picklepete View Post
    Linoleic acid toxicity seems to be a real thing but IMO it's a little silly to consider almonds equivalent to the daily ocean of chips, miracle whip, ranch dressing, and bloomin onions that most eat. Quantity matters, and almonds contain other stuff.

    How often are people actually using almond flour? I use a little on holidays usually cut with some coconut or tapioca and treat celebratory desserts as such. Everyone knows that a cake is not a weekday breakfast (I hope?)
    True toxicity is possible, but EXTREMELY unlikely.

    The real issue here, I think, is the issue of inflammation caused by excess polyunsaturated fats in the diet since in reality, we need so very little to maintain health.

  8. #28
    Omni's Avatar
    Omni is offline Senior Member
    Join Date
    Jun 2012
    Posts
    929
    Low grade inflamation is not going to be expressed as vomiting or diarrhea, it will be expressed as an obscure set of symptoms contributing to chronic disease that will manifest in different ways for each individual.

    Will a little bit of almond flour make a difference, probably not, will a lot, probably yes, it's all about being aware of what is doing what according to the information available to us.

  9. #29
    ChocoTaco369's Avatar
    ChocoTaco369 is offline Senior Member
    Join Date
    Mar 2011
    Location
    Narberth, PA
    Posts
    5,545
    Quote Originally Posted by MonkeyGuy View Post
    I just read this article on the dangers of using Almond flour because of the potential of overdosing on Poly Unsaturated Fats (PUFA's). 5 Reasons to Avoid Almond Flour - Empowered Sustenance
    I'm going to be very vague - on purpose - because there is so much extensive information on the damaging effects on PUFA's AND so much information glorifying unsaturated fats in general and demonizing saturated fats in general you really have to read it all and develop your own opinion.

    My opinion is that the studies demonizing saturated fat are constituted entirely of epidemiological hogwash and industry propaganda plagued with red herrings and correlation, while the studies demonizing PUFA are usually controlled and direct. I embrace saturated fat with open arms and believe it should be the dominant fat in your diet, while I despise PUFA with every fabric of my being and believe it is PUFA - not grains, not legumes, not sugar - causing the overwhelming majority of health defects in our society. I believe fish oil to be worse than canola oil as well. But, you have to develop your own opinion. I will point you in a direction. There is NO better site on Earth documenting the damaging effects of PUFA than....

    Ray Peat

    Read it. All.

    This study is a mindblower as well.

    The Advanced Glycation End Product, N-(Carboxymethyl)lysine, Is a Product of both Lipid Peroxidation and Glycoxidation Reactions

    It is a lovely study showing PUFA causes 23 times more AGE production than sugar. Yet, it's called...glycation...hmm...

    I also believe diabetes is caused by PUFA, not sugar. I believe sugar to protect against diabetes, actually, and I believe glucose is much more essential than fat. You can clearly see where I stand on the issue.
    Don't put your trust in anyone on this forum, including me. You are the key to your own success.

  10. #30
    Artbuc's Avatar
    Artbuc is offline Senior Member
    Join Date
    May 2012
    Posts
    480
    PrimalCon New York
    Quote Originally Posted by ChocoTaco369 View Post
    I'm going to be very vague - on purpose - because there is so much extensive information on the damaging effects on PUFA's AND so much information glorifying unsaturated fats in general and demonizing saturated fats in general you really have to read it all and develop your own opinion.

    My opinion is that the studies demonizing saturated fat are constituted entirely of epidemiological hogwash and industry propaganda plagued with red herrings and correlation, while the studies demonizing PUFA are usually controlled and direct. I embrace saturated fat with open arms and believe it should be the dominant fat in your diet, while I despise PUFA with every fabric of my being and believe it is PUFA - not grains, not legumes, not sugar - causing the overwhelming majority of health defects in our society. I believe fish oil to be worse than canola oil as well. But, you have to develop your own opinion. I will point you in a direction. There is NO better site on Earth documenting the damaging effects of PUFA than....

    Ray Peat

    Read it. All.

    This study is a mindblower as well.

    The Advanced Glycation End Product, N-(Carboxymethyl)lysine, Is a Product of both Lipid Peroxidation and Glycoxidation Reactions

    It is a lovely study showing PUFA causes 23 times more AGE production than sugar. Yet, it's called...glycation...hmm...

    I also believe diabetes is caused by PUFA, not sugar. I believe sugar to protect against diabetes, actually, and I believe glucose is much more essential than fat. You can clearly see where I stand on the issue.
    Choco, have saturated fats affected your blood lipids? They shot mine through the roof!

Page 3 of 6 FirstFirst 12345 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •