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Parathyroid Hormone

Parathyroid hormone (PTH) is a hormone secreted from the parathyroid that negatively influences the actions of Vitamin D and promotes bone loss when in excessive concentrations.

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Human Effect Matrix

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The Human Effect Matrix looks at human studies to tell you what supplements affect Parathyroid Hormone.

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Grade Level of Evidence
Robust research conducted with repeated double-blind clinical trials
Multiple studies where at least two are double-blind and placebo controlled
Single double-blind study or multiple cohort studies
Uncontrolled or observational studies only
Level of Evidence
? The amount of high quality evidence. The more evidence, the more we can trust the results.
Supplement Magnitude of effect
? The direction and size of the supplement's impact on each outcome. Some supplements can have an increasing effect, others have a decreasing effect, and others have no effect.
Consistency of research results
? Scientific research does not always agree. HIGH or VERY HIGH means that most of the scientific research agrees.
Notes
grade-b Strong Very High See all 5 studies
Vitamin D supplementation is the reference drug for reductions in parathyroid hormone due to directly negatively regulating its secretion
grade-c - - See study
Insufficient evidence to support changes in parathyroid hormone from 7-keto supplementation.
grade-d Minor - See study
There was an increase in one study in renal transplant patients over the course of a year

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Things to Note

Also Known As

PTH