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" If you test progesterone at the right time (after ovulation), then it should be at least 3 ng/mL (9.5 nmol/L). [80] If it’s below that, then you either did not ovulate, or you tested at the wrong time. Avoid interpreting your progesterone result before your period comes. Wait for your period, and then ask: “Was the test done within the 14 days before my period?” If not, the test is meaningless. A good progesterone reading is 10 ng/mL (30 nmol/L), and it can be much higher. In fact, the higher, the better. But don’t worry too much if it’s a bit on the low side. Progesterone fluctuates widely in bursts 90 minutes apart, so a low-normal reading may simply mean that your sample was taken at a low point between bursts. "
― Lara Briden , Period Repair Manual
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" Estrogen metabolism is the healthy removal or detoxification of estrogen from your body. It’s a two-step process. First, your liver inactivates estrogen by attaching a little molecule or “handle,” which is called conjugation. To do that effectively, your liver needs a good supply of nutrients such as folate, vitamin B6, vitamin B12, zinc, selenium, magnesium, and protein. Your liver also needs to be relatively free from the toxic effects of alcohol or endocrine disrupting chemicals. Even one drink per day can increase your blood level of estrogen. "
― Lara Briden , Period Repair Manual