Increased FSH Levels: Why People With Blood Type O Are More Susceptible And How Dietary Changes And Natural Herbs Can Help

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Many couples are excited to embark on a new chapter of life by having a baby. Unfortunately, infertility is a real and pressing issue that affects both men and women. 6.7 million American women between the ages of 15 to 44 struggled with impaired fecundity, which is the ability to get pregnant or carry a baby to term, whereas 1.5 million American women are completely infertile. One of the first things an obstetrician will check for is your FSH level. Here's what you need to know.

A Basic Understanding of FSH Levels and Fertility

A lot of factors play a role in fertility. One of the larger players is FSH. FSH, or the follicle-stimulating hormone, is manufactured by the brain and regulated by the pituitary gland. It's primary role and objective is to control and regulate the menstrual cycle and the production of eggs in the ovaries.

For women who are still menstruating, FSH levels between 4.7 and 21.5 mIU/ml are considered to be within a normal range. Those with FSH levels on the lower and higher end of spectrum may struggle with fertility issues. In particular, a high FSH level is a hallmark signature for a low ovarian reserve, and women with high FSH levels tend to have a more difficult time getting pregnant.

Higher Prevalence of High FSH Levels in Blood Type O Individuals

Many factors regulate and affect your FSH levels. A recent study has found that even your blood type plays a role. Low ovarian reserves are twice as common in individuals who possess blood type O in comparison to any other blood type. Although scientists have yet to come to an agreement regarding why, most scientists believe the elevated FSH levels are caused by the lack of antigens in individuals with blood type O.

If you have blood type O and are having problems with getting pregnant, consider having an Anti-Mullerian hormone (AMH) test. Normal AMH blood levels fall between 1.5 to 4.0 ng/ml. The AMH test will give you a better idea of your ovarian reserve level and whether it is healthy or not. If you have a low ovarian reserve, you will have found the cause behind your elevated FSH levels.      

Recommended Dietary Changes and Natural Herbs

Getting your FSH levels back to a normal range can help you become more fertile. While there are many recommended treatments, many physicians recommend making dietary changes and consuming natural herbs at first. If these natural treatments do not work, there are other more invasive options that you can try. To lower FSH naturally, consider eating and trying the following:

  • A predominantly Paleolithic diet. A Paleolithic diet is largely meat-based, and you'll have to sacrifice many foods. For example, you'll have to avoid eating dairy and wheat products. A Paleolithic diet is high in vitamins, which can increase fertility
  • Algae and seaweed, as they are rich in minerals, like iodine, potassium, magnesium, calcium and iron, which help promote metabolism and regulate thyroid hormones. Algae and seaweed act like a blood tonic for individuals with blood type O. In addition, a healthy thyroid is a requirement for follicle production
  • Chinese herbs like Shatavari, Dong Quai and Rehmannia. These herbs are traditionally used to treat poor egg quality and have been known to be effective.

Other non-invasive treatments include fertility massage and acupuncture. These non-invasive treatment options place less of a strain on your body during this difficult time, which can help improve fertility.


Although individuals with blood type O are more likely to struggle with high FSH levels that cause infertility, there are many different treatment options available. Many of these treatments have high success rates. If you are having fertility issues, speak to an obstetrician immediately to determine whether the elevated FSH levels are caused by a low ovarian reserve. Once you know what the culprit is, you'll have an easier time improving your situation.