@BroJonas
Thanks. This is really helpful.

Does anyone really know if the "USP" B1 hcl on one expensive online store is really 3x better than the "USP" B1 hcl on a cheaper online store?
One store says its "USP" B1 hcl (costing 3x more than the other) is better because it comes from Germany.
Another store's 3x cheaper "USP" B1 hcl comes from china.
Has anyone ever seen any - formal testing - that shows a difference in purity (maybe fewer heavy metals?) for the Germany products?

I have read many posts on various Peat sites about fatty acid oxidation/FAO and beta oxidation.
But I am not clear on these two processes.
Is FAO the burning of fatty acids OUTSIDE of the mitochondria, in the cytoplasm?
Is it not part of the Krebs cycle, or the electron transport chain?
What is produced in this? ATP?
Is FAO perfectly normal, when not excessive?
And is beta oxidation of fat OUTSIDE of the mitochondria, in the cytoplasm?
What is produced in this? ATP?
Is it not part of the Krebs cycle, or the electron transport chain?
Is this much less efficient than OXPHOS (I believe the burning of glucose in the mitos)?
Is beta oxidation perfectly normal, when not excessive?

It looks like there are .4 g leucine in 28 g (1 oz) of red meat.
That would mean, to reach 2.5 g leucine, one would have to eat 6 oz of red meat.
Is that right?

Has anyone here come with a good recipe for a no-bake homemade protein bar with tallow?
I am trying to come up with something simple, no-bake, that I can give to my son for school, when he does not have time for a long, complex (proper) Peat lunch.
I like tallow because of the way it is used in pemmican, but I don't have time to make actual pemmican.
I was thinking of something like this, but I lack details (and I cannot find a single homemade bar recipe on the web with tallow)
2 cups Protein powder (Mt. Capra Clean Whole Protein) 1/2 cup tallow ?
1 cup oats ?
1/2 cup A2 milk
1/2 cup maple syrup or raw honey ?
2 cups chopped dates ?
1 tbsp vanilla extract
Salt
This would be kept in the freezer until it is time to leave for school.

I used to take lots of B vitamins.
I stopped taking a B-complex pill a while back, and switched to taking B vitamins as powders, to control the dosage.
But I still did not feel that it was helping, and the powders irritated my gut and hurt my sleep.
I finally went back to Haidut's perfect Energin product.
I now take 4 drops on my wrist each day, and feeling better each day.

@DavidPS
So, is this study related to the Haidut comment on the Peat site that nicotine is cholinergic?

https://lowtoxinforum.com/threads/caffeine-increases-pregnenolone-progesterone-in-the-brain.3583/page-2#post-81386

I would consider using microdose nicotine as a patch, for endotoxin issues, except for Haidut's comment that nicotine is cholinergic...

@Mossy
Here is the site:
https://www.dsm-firmenich.com/en/businesses/health-nutrition-care/products/vitamins/vitamin-c.html

@Mossy
From the quali-c page:
Since 2023, our base raw material is GMO-free - wheat - from Germany which resulted in more sustainable final product which is also gluten-free​.

@sneedful
Thanks.
I compared the cost per g for that one to this one:
https://www.amazon.com/gp/product/B00HNS1E0W/ref=ox_sc_act_title_1?smid=ATVPDKIKX0DER&psc=1

lifegiving is
60 g $25

The Doctor's best one on amazon is
250 g for $20

Same product, I think.