Mauritio
Member
- Joined
- Feb 26, 2018
- Messages
- 5,669
In addition to that it has been shown in animals that high salt supplementation almost doubles testosterone, which is highly anti-cortisol.In regards to the potential cortisol issue, I found this study on Salt Loading that measured both plasma cortisol and urine cortisol metabolites during a week of higher salt loading, in both normal and salt sensitive individuals- Salt Loading Affects Cortisol Metabolism in Normotensive Subjects: Relationships with Salt Sensitivity
It seems this study found that plasma cortisol was lowered in normal individuals. The higher amount of urinary cortisol metabolites would be the body eliminating excess cortisol-
" This study clearly demonstrates changes in cortisol metabolism in response to dietary sodium in normotensive subjects. Interestingly, the sum of urinary cortisol metabolites, which can be considered as an estimate of cortisol elimination, was on average increased in sr, but decreased in ss subjects after salt loading. Likewise, the excretion of UFF, UFE, and each of the individual cortisol metabolites (THF, allo-THF, and THE) was higher after salt loading in sr subjects but was unaltered or lower in ss subjects. Of note, these changes in cortisol metabolite excretion after salt loading were accompanied by a decrease in plasma cortisol concentration, particularly in sr individuals. Taken together, it can be envisaged from these data that salt loading induces an increase in cortisol elimination and hence a decrease in circulating cortisol in sr subjects, whereas these effects of salt loading on cortisol metabolism are blunted in ss individuals."
"In agreement with a primary enhancing effect of sodium loading on cortisol elimination, the changes in plasma cortisol were negatively correlated with the changes in urinary cortisol metabolite excretion in the whole group. In ss subjects, the change in plasma cortisol was not significant, whereas urinary cortisol metabolite excretion tended to decrease. In this respect, the aforementioned inverse relationship between the sum of cortisol metabolites and the percentage change in plasma cortisol is of relevance. It suggests that the reciprocal relationship between changes in urinary cortisol metabolite excretion and plasma cortisol can be regarded as a continuum rather than as a qualitatively different response to salt loading in ss subjects."
So it seems that in most individuals, increased salt intake would tend to lower plasma cortisol. Caution might be warranted in individuals with known salt sensitivities, and also to be sure to be getting enough sugar to meet increased metabolic demands when consuming extra salt.
As you can see from the study, plasma aldosterone was absolutely crushed in both groups after one week of salt loading.
High Salt Diet In Rats Almost Doubles Testosterone Levels, But