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Why do some people have normal thyroid labs yet still feel exhausted, foggy, or gain weight? One of the most common questions where hormones are concerned is what dose of one form is equivalent to another. Hence, the high to very high doses are indicated for estradiol monotherapy (i.e., estradiol alone without an antiandrogen). On average, the high dose will suppress testosterone levels by about 90%, to around 50 ng/dL (Wiki; Aly, 2018).
Or, when there is a hormone shortage, which has happened before and you can read about why those can happen in a previous post. For example, someone might be using an estradiol patch and is happy with it, but is getting a rash from the adhesive and wants to switch to a topical gel. The conversion factors provided are derived from current literature and applied as published; therefore, we cannot take responsibility for the accuracy or validity of these conversion factors.We are happy to expand the list of parameters. Table of conversion factors for Estradiol (E2) unit conversion to pmol/L, pg/mL, pg/dL, pg/100mL, pg%, pg/L, ng/L .
Low thyroid hormone may reduce circulation and oxygen delivery. Blood tests to measure hormone circulating in the blood must be correlated with symptoms. Some patients have normal TSH but low levels of T3 or low levels of free T4.
Lastly, estrogen is essential for joint health, reducing inflammation, and promoting collagen synthesis, preventing injuries. It also supports cardiovascular health by modulating HDL/LDL cholesterol and nitric oxide production, essential for arterial elasticity and blood pressure regulation. At 417 Integrative Medicine, patients receive personalized care focused on the root cause of changes in thyroid. Tracking patterns helps identify subtle dysfunction before severe thyroid disease develops. If thyroid is producing too much hormone, headaches may accompany anxiety and palpitations.
SI is a system based on the meter-kilogram-second system of units rather than a centimeter-gram-second system. Unlike the other SI base units, the kilogram is the only SI base unit with an SI prefix. The UK also often uses both pounds and stones when describing body weight, where a stone is comprised of 14 pounds.
Changes in thyroid binding proteins may affect thyroid test results without true dysfunction. Total T3 test measures overall levels of T3 in a blood sample. This includes protein bound hormones and free hormones.
Once we know exactly where the breakdown is — production, conversion, blocking, or a combination — we build a plan around the real cause. About 20% of T4-to-T3 conversion happens in the gut. Thyroid hormone production depends on iodine, selenium, zinc, and iron.
This prototype weight could be divided into 16 ounces, a number that had three even divisors (8, 4, 2). It is a system that was based on a physical standardized pound that used a prototype weight. Reducing alcohol consumption, which enhances aromatase activity and impairs estrogen excretion, is also beneficial. Conversely, low estrogen manifests as joint stiffness, aches, pain, tendon injuries, poor libido, altered HDL/LDL ratios, insulin insensitivity, and cognitive issues such as poor memory, focus, and mood. Therefore, managing high estrogen is important to prevent potential negative effects on prostate growth. It's also critical for sexual function, particularly maintaining erections, and for neurologic function, mood, and memory by influencing serotonin pathways.
During pregnancy, estrogens are mainly formed in the placenta.
Management of menopausal symptoms. If you’re switching formulations, think of it more as an informed starting place and less as a precise dosing recommendation—then adjust as needed in shared decision making with your health care professional. And if enough people want me to put together a similar chart for low or higher dose regimens, let me know. The reality is that it takes combing through multiple studies, looking at the relief of symptoms and the pharmacokinetics (that is if they were done), and creating a rather complex document to see how they all compare. Everyone seems to be in agreement (or close enough) for the transdermal products and Premarin (oral conjugated equine estrogens).