Nobody wrote:
I believe he thinks a lot of supplements are scams,
certainly DHA. Popper is of a similar opinion. Their stance is in the interest of the WFPB community and their customers. As you know, Fuhrman and Greger tend to the opposite view. But it's hard to know who to trust when you see studies that show a benefit. In my anecdote, I've found that vit-D has benefitted me in regard to eczema. Also if iodine isn't a problem, then why was my TSH increasing? I believe I've also had B12 deficiency symptoms from following McDougall's B12 supplementation advice.
My interest is always in sifting what is most likely factual, from the science and clinical experience.
I hate poor interpretation of the science, especially profit driven.
I think the variable state of supplement recommendations to WFPBers by celebrities highlights the science is unclear.
Recommendations today are not the same as they were 10,20,30,50 years ago...and I am sure they will be different similarly in the future.
The reason I take the time to investigate what multiple WFPB celebrities recommend supplement wise, is because it very clearly signals the dangers of adopting a regimen on emotive or ideological reasons, or because of personality worship.
I recently terminated my membership with the Australian WFPB facebook group because when I posted the B12 recommendations of the above identities, they deleted them, twice. Knowing the character and education of several moderators, they don't want any talk that would confuse or erode the 'status' and credibility of the personalities they set on a pedestal. Some people need to get through life with that kind of faith based certainty.
Understanding that there is no consensus re supplementation, should drive the celebrities to strive harder to interpret the literature more carefully, and liaise so as not to create unnecessary confusion. It should also encourage a little scientific humility.
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An interesting snippet Pam dropped on one of the resources is that a nutrition deficiency can be due to an unrelated disease state.
i.e. I think she mentioned Vitamin D deficiency resolved when the patient's hyperglycemia was normalized.
https://youtu.be/X3jGNB4vMAA?t=9m
Most health pros would just recommend going on a permanent D supplement. Nutrition, digestion, and metabolism is a very complex and broad area that no one person can ever hope to stay on top of.
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Another interesting snippet was from Jack Norris' excellent and ever improving site.
He refers to a finding of a community in Iraq, that eats very very little animal produce, but their B12 is normal.
https://veganhealth.org/intestinal-bact ... 12-source/
"Iranian Villagers
Halstead et al. (8) reported that some Iranian villagers with very little animal product intake (dairy once a week, meat once a month) had normal B12 levels. None had megaloblastic anemia. Their average B12 level was 411 pg/ml which was quite high considering their diet.
The authors speculated this could be because their diets, which were very low in protein, allowed for B12-producing bacteria to ascend into the ileum where the B12 could be absorbed. They also speculated that because they lived among their farm animals and their living areas were littered with feces, they picked up enough B12 through contamination.
Halstead et al.’s 1960 report was in contrast to Wokes et al.’s 1955 report (9) in which numerous British vegans were found to have neurological symptoms of B12 deficiency."
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On another note, in my reading about appetite and craving signaling, I came across the work of the scientist below.
She has found the gut synthesized encretin polypeptide signaling hormone GLP-1 (glucagon like peptide), which is a significant appetite suppressant, is increased in the plasma when one consumes an extracted product from spinach. The product is thylakoids which are essentially the fibrous components of the spinach leaves. This extract is now sold as an appetite suppressant with mildly significant scientific evidence to back it.
This lends support to people such as Chef AJ who recommend very large intakes of dark green leafys to suppress appetite and lose weight comfortably.
Charlotte Erlanson-Albertsson
http://portal.research.lu.se/portal/en/ ... tions.html
https://www.tandfonline.com/doi/full/10 ... 14.1003999
J Am Coll Nutr. 2015 Nov 2; 34(6): 470–477.
Acute Effects of a Spinach Extract Rich in Thylakoids on Satiety: A Randomized Controlled Crossover Trial
Candida J. Rebello, MS, RD, a , b Jessica Chu, BS, c Robbie Beyl, PhD, a Dan Edwall, PhD, d Charlotte Erlanson-Albertsson, PhD, e and Frank L. Greenway, MD a , *