On Fri, 9 Feb 2001, Amadeus Schmidt wrote:
> On Mon, 5 Feb 2001 12:54:14 -0500, Todd Moody <[log in to unmask]>
> wrote:
>
> >... In any
> >case, I'm not convinced that there is evidence to support the
> >claim that 1/3 of dietary fat should be EFA.
>
> I've taken the list you provided and added a column which shows
> the percentage of EFAs therein.
> Here it is:
>
> Food Item kcal SFA MUFA PUFA Fat Prot PUFA-percent
> Game, antelope, raw 114 0.74 0.48 0.44 2.03 22.38 27
> Game, beefalo, raw 143 2.04 2.04 0.15 4.80 23.30 4
> Game, bison, raw 109 0.69 0.72 0.19 1.84 21.62 12
> Game, boar, wild, raw 122 0.99 1.30 0.48 3.33 21.51 17
> Game, buffalo, water, raw 99 0.46 0.42 0.27 1.37 20.39 23
> Game, caribou, raw 127 1.29 1.01 0.47 3.36 22.63 17
> Game, deer, raw 120 0.95 0.67 0.47 2.42 22.96 22
> Game, elk, raw 111 0.53 0.36 0.30 1.45 22.95 25
> Game, horse, raw 133 1.44 1.61 0.65 4.60 21.39 18
> Game, moose, raw 102 0.22 0.15 0.24 0.74 22.24 39
> Game, rabbit, farmed, raw 136 1.66 1.50 1.08 5.55 20.05 25
> Game, rabbit, wild, raw 114 0.69 0.63 0.45 2.32 21.79 25
> Game, squirrel, raw 120 0.38 1.18 0.94 3.21 21.23 38
> Beef, ground, extra lean 234 6.81 7.41 0.71 17.06 18.70 5
> Beef, ground, lean, raw 264 8.31 9.01 0.85 20.67 17.70 5
> Beef, ground, reg., raw 310 10.80 11.60 1.08 26.55 16.60 5
> Beef, top round, raw 169 3.22 3.49 0.33 8.39 21.80 5
> Beef, brain, raw 126 2.16 1.85 1.07 9.28 9.80 21
> Beef, heart, raw 117 1.13 0.84 0.92 3.78 17.10 32
> Beef, kidneys, raw 107 0.97 0.66 0.67 3.08 16.60 29
> Beef, liver, raw 143 1.50 0.51 0.84 3.75 20.00 29
> Group kcal SFA MUFA PUFA Fat Prot
> Pork 246 6.88 8.41 2.11 18.96 17.41 12
> Beef 222 6.39 6.73 0.63 15.70 18.86 5
> Lamb 215 7.07 6.14 0.93 15.43 17.84 7
> Poultry 172 2.83 3.77 2.14 9.82 19.35 24
> Fish 113 0.85 1.36 0.93 3.71 18.20 30
> Game 123 0.90 0.91 0.41 3.34 21.81 18
> Fruit, raw 60 0.13 0.35 0.16 0.78 0.89 25
> Vegetables, raw 43 0.08 0.07 0.19 0.46 2.58 56
> Nuts & seeds, raw 288 7.51 7.44 1.89 17.77 5.44 11
>
> The list clearly shows that all the farmed meat items have very small
> amounts of EFAs, except the organs and beefalo.
And the poultry. I have never doubted the claim that farmed
animal meat is EFA deficient. Where we disagree is on what to do
about it. Your idea is to avoid it altogether; mine is to get
EFAs from other sources, such as organ meats, fish, or nuts, or
some combination of the above.
> According to the study mentioned by Udo, the MUFA interfere with EFA
> activity and some of the SFA add to MUFA (by beeing converted to MUFA).
I think this study shows this interference if EFA intake is low
to begin with. If adequate EFAs are available (in the small
absolute amounts needed) then there is no need to convert SFAs to
MUFAs at all. Other variables need to be considered. In
particular, energy balance is important. If SFAs are eaten in a
calorically balanced diet, very few will be converted to MUFAs
anyway -- only what is needed for membranes. Most will be burned
for energy and will not compete for those desaturase enzymes.
How many grams per day of EFAs do you think are needed for PG
synthesis and membrane maintenance? "Dr. Anonymous", the
Multi-Diet author, thinks we need on the order of 4-5g of omega-6
and about 2g of omega-3. An ounce of walnuts will get you that.
> If we try to achieve a nutrition close to the paleolithic nutrition, I think
> we should simply realize that farmed animal fat is just different.
> Not paleo.
> Not without thoughtfull supplementation.
Exactly, but thoughtful supplementation does not entail rejection
of farmed animal meat. It means (a) paying attention to getting
EFAs from other sources, and (b) paying attention to energy
balance. In a paleolithic living situation people didn't have to
pay attention to these things; they took care of themselves. In
modern life it's different.
Todd Moody
[log in to unmask]
|
