Nige's Diet & Nutrition Blog
11 Temmuz 2014 Cuma
Nutritional Ketosis: What is it good for?
I have a video in mind...
Having previously shown you what
I
look like on a diet of ~125g/day low-GL carbohydrates, here are a couple of recent pictures of
Jimmy Moore
, who's on a
very-low-carb, very-high-fat diet
(~85%E from fats), a.k.a.
Nutritional Ketosis
. It involves adding Kerrygold butter to just about everything, even eating sticks of it from a block. I'm not kidding.
I told you I wasn't kidding.
From
Google Image Search on "Jimmy Moore" OR "Livin la Vida low carb", images in the last 7 days
:-
On 6.7.14.
On 8.7.14.
The only recent footage of Fredrick Hahn, is the following video from the Low Carb Cruise...
To my eyes,
Nutritional Ketosis
is good for absolutely
nothing
. Dietary fat
can
be stored as body fat, in the absence of
dietary carbohydrates
.
Gary Taubes
' claim "
You can basically exercise as much gluttony as you want, as long as you're eating (only) fat and protein.
" is pure fantasy, not supported by evidence.
The
low protein intake
in
Nutritional Ketosis
, combined with the
high serum cortisol
that's almost inevitable on this way of eating, results in a
loss of muscle mass
. I give
Nutritional Ketosis
a thumbs-down.
Summary:-
1)
No Energy Deficit
→
No Weight Loss
. There is no
Metabolic Advantage
to
Nutritional Ketosis
. See
http://www.jbc.org/content/92/3/679.full.pdf
2)
Insufficient carbohydrate intake
and
insufficient protein intake
starves the liver & kidneys
of
gluconeogenic pre-cursors
, which raises
cortisol
, which converts
muscle mass
into gluconeogenic pre-cursors e.g.
Glutamine
,
Alanine
etc. This is standard
Biochemistry
. No links required.
3)
While excess
carbohydrates
are converted into
triglycerides
by the liver, excess
fats
are converted into
cholesterol
by the liver, which is
exported
to
tissues
as
LDL-C
.
LDL-P ∝ LDL-C
.
High LDL-P
is
strongly associated
with
increased risk factor for CHD
. See
http://www.lecturepad.org/dayspring/lipidaholics/pdf/LipidaholicsCase291.pdf
CHD is
not
an
inflammation-mediated phenomenon
. It's an
LDL-P
and
neovascularisation-mediated phenomenon
. See
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3492120/
Postprandial lipaemia
is
atherogenic
. See
Ultra-high-fat (~80%) diets: The good, the bad and the ugly
.
4)
Read
Page 10
of
https://www.drmcdougall.com/misc/2013nl/feb/pritikinpdf3.pdf
, starting from "Could such a cream meal precipitate an angina attack because the oxygen-carrying capacity of the blood is lowered?" It's an
actual
trial on
humans
with
clogged coronary arteries
. It's
not
a
hypothesis
.
5)
Chronically-raised cortisol
causes
aggressive behaviour
(
cortisol
is a
stress hormone
) and
adversely affects short-term memory
storage in the
Hippocampus
. See
http://evolutionarypsychiatry.blogspot.co.uk/search?q=cortisol
6)
Eskimos
,
Sami
,
Masai
,
Samburu
,
Tokelauans
etc, get
~50%
of their
total energy
from
fats
. There are
zero
populations that get
≥80%E
from
fats
.
Update 25th July 2014:
I appear to have rustled Fredrick Hahn's Jimmies. See
https://www.facebook.com/FredrickHahn/posts/10152227780827864
I can safely state that
Fredrick Hahn
is a
liar
(I am
not
poking fun at anybody and I have only blocked
him
(not his
followers
) from posting here, for a flagrant breach of my
Moderation Policy
on his first attempt at commenting), and
intellectually-dishonest
(for
repeatedly mis-quoting
me, and
using other logical fallacies
). He posted the above post knowing that, as I had
blocked
him on
Facebook
, I wouldn't see it. I only learned of its existence after a friend PM'ed me on
Facebook Messenger
. He instructed his "
followers
" to leave comments here and then accuse me of
lying
about
white-listing,
back on his page, because their comments didn't appear
immediately
. He's a real piece of work! From
ABOUT ME
:-
Moderation Policy:
Comments from first-time & untrusted commenters are moderated
← (click for details). Please be patient. Now that I have a Smart Phone, I can publish your comments during the day when I'm away from my lap-top, but I prefer to type replies on my lap-top. Comments from anonymous commenters, containing links in any form, are deleted.
This is a function of Disqus
, as it's impossible to
retrospectively white-list
a commenter who's never commented here before. There appears to be a severe
lack of cognitive function
in these people. I really can't think why that is ;-)
Why am I being so hard on
Jimmy Moore
and
Fredrick Hahn
? I don't know these people personally.
1) These people are
making money
out of
peddling pseudoscience.
2) These people
meet all the criteria
in
Guest post: Science versus Pseudoscience
and have created an
alternative science
, where
sky-high LDL cholesterol
,
sky-high LDL-P
and
sky-high postprandial TG's
are
not risk factors for CHD
, but are either
harmless
or
beneficial
.
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