youngsinatra
Member
I think bodytemperature is the better indicator of metabolism.
I feel best at 37.0 C or 98,6 F.
I feel best at 37.0 C or 98,6 F.
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85 seems to be an inference from the pulse rates of children, a demographic infamously ravaged by heart disease and poor vascular health.
If not youth-oric, you're degenerating.
I think it’s not this straightforward. Peat acknowledged high heart rate can be problematic, for example someone obese with heart disease and whose heart is working harder to pump through narrowed arteries, like you describe. However he also said the slow heart rate associated with athletes (which medical professionals will say is “more efficient”) is not a sign of health, and that the high heart rate of infants and children is indeed a marker of higher metabolism, and that through interventions including thyroid and progesterone supplementation, adults too can improve their metabolism - for which increased heart rate and body temperature are telltale signs. Consider the “staircase effect”, the idea that in a healthy animal, an increase in pulse should also have a corresponding increase in the strength of the heart’s contractions, i.e. it’s pumping ability, as described by Ray here:Heart rate is a poor indicator of metabolism imo. Assuming same metabolic and heart strength, a person with good vascular health is going to require less heartbeats to get the same blood flow than a person with greater vascular resistance. It's just physics.
I think it’s not this straightforward. Peat acknowledged high heart rate can be problematic, for example someone obese with heart disease and whose heart is working harder to pump through narrowed arteries, like you describe. However he also said the slow heart rate associated with athletes (which medical professionals will say is “more efficient”) is not a sign of health, and that the high heart rate of infants and children is indeed a marker of higher metabolism, and that through interventions including thyroid and progesterone supplementation, adults too can improve their metabolism - for which increased heart rate and body temperature are telltale signs. Consider the “staircase effect”, the idea that in a healthy animal, an increase in pulse should also have a corresponding increase in the strength of the heart’s contractions, i.e. it’s pumping ability, as described by Ray here:
“In one of [Albert Szent-Gyorgyi’s] experiments, he compared the effects of estrogen and progesterone on rabbit hearts. A basic property of the heart muscle is that when it beats more frequently, it beats more strongly. This is called the staircase effect, from the way a tracing of its motion rises, beat by beat, as the rate of stimulation is increased. This is a logical way to behave, but sometimes it fails to occur: In shock, and in heart failure, the pulse rate increases, without increasing the volume of blood pumped in each contraction. Szent-Gyorgyi found that estrogen treatment decreased the staircase effect, while progesterone treatment increased the staircase.”
So what thyroid and progesterone should be doing is increasing the heart rate AND the amount of blood being pumped/circulated.
That's the thing, im always at 35-36, never even close to 37I think bodytemperature is the better indicator of metabolism.
I feel best at 37.0 C or 98,6 F.
I've been doing this for maybe 6-ish months? I'm not perfect but I was avoiding seed oils to an extremely mild extent for years. I am going to do what I can to stay on this path. I cook everything at home and eat completely Peaty.I'd say keep going, You didn't say how long you were working on your diet.
TBH i thought I wasnt having liver or vitamin-a full foods often, but I will try a few weeks without. I was having it once a week maximumTry dropping the liver. The vitamin A could be suppressing your thyroid. Salt might help too.
It’s likely you are getting enough vitamin A from other foods because your diet is good.TBH i thought I wasnt having liver or vitamin-a full foods often, but I will try a few weeks without. I was having it once a week maximum
It’s likely you are getting enough vitamin A from other foods because your diet is good.
Dr Peat talking about Vitamin A requirement
View: https://www.youtube.com/watch?v=PuSfV43Quuo&t=2555s
I think once you drop the liver it might take a bit of time to notice improvement. You might find that once you've stopped suppressing your thyroid with extra A your temperature might rise. Are you filtering your drinking water?I even tried 8mcg of haiduts tyronene and really didnt feel any change, extremely strange i think i will try again though.
Where are the sources that vitamin A contributes to hypothyroidism?
In poor countries, vitamin A intake as positively correlated with thyroid function again and again.
I posted this study in this thread. It is the only human RCT that I’m aware of. They used large doses, 25k IU a day of rentinyl palmitate, and essentially everyone’s thyroid improved sigificantly (lower TSH, higher T3, etc.):
The Effect of Vitamin A Supplementation on Thyroid Function in Premenopausal Women - PubMed
“Vitamin A caused a significant reduction in serum TSH concentrations in obese (p = 0.004) and nonobese (p = 0.001) groups. Serum T3 concentrations also increased in both obese and nonobese vitamin A-treated groups (p < 0.001).”
From the full text:
(The OA grounp [active group, obese] and the N group [non-obese, active group] both got the vitamin A. OP [Obese, placebo] got placebo)
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Can you link some papers showing this “anti-thyroid stress” of vitamin A in anything but crazy high amounts?
On the previous page, I posted a well done human RCT that 25,000 IU of retinyl palmitate per day drastically improved all markers of thyroid (TSH, T3, etc.) in both obese and non-obese individuals. Human RCTs are part of the highest levels of evidence to rely on, as only they can demonstrate causation.
Further, that paper linked other papers (I included a pic of the references) showing that in poor countries where vitmain A intake was subopimal, thyroid function suffered.
Please do not post any theory or hypotheses. I want to see papers - evidence - that vitmain A is an “anti-thyroid stress”, which will then be weighed with as little bias as possible against the evidence showing its beneficial effects on thyroid.
Here are some related papers:
Vitamin A Supplementation in Iodine-Deficient African Children Decreases Thyrotropin Stimulation of the Thyroid and Reduces the Goiter Rate - PubMed
The Effects of Vitamin A Deficiency and Vitamin A Supplementation on Thyroid Function in Goitrous Children - PubMed
https://www.researchgate.net/public...id_effects_on_thyroid_function_of_female_rats
^^Retinoic acid effects on thyroid function of female rats
“Serum T4 and thyrotropin levels remained unchanged, while serum T3 increased in animals treated with all-trans-retinoic acid for 14 days. No changes were observed in hepatic or renal type 1 iodothyronine deiodinase (D1) activities, while thyroid D1 was higher in animals treated for 14 days with all-trans-retinoic acid, which could be related to the increased serum T3 levels. 13-cis retinoic acid increased thyroid iodide uptake after 28 days. These results show effects of retinoic acid treatment on these thyroid proteins: sodium/iodide symporter and deiodinase.”