I am taking more than 25 mg of folic acid a day

Hi,
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Folic acid which is also known as called vitamin B9, is a member of the vitamin B family, and like all other vitamins, it is not produced naturally by the body and has to be provided on a timely basis, to the body from outside sources. It is very important for the functioning of various body processes, like the production of new cells, metabolism of proteins, etc. It is very important to the body, especially during pregnancy for proper development of the fetus.
Under normal circumstances, people do not develop folic acid deficiency, but chronic alcoholics, or people with digestive tract problems, or liver diseases, or those undergoing kidney dialysis, etc. can suffer from folic acid deficiency and require folic acid supplementation. People with pernicious anemia may are also given folic acid in combination with other medication. Pregnant women and breastfeeding women require higher levels of folic acid. The dosage depends on the health condition of a person. A healthy person requires about 400 mcg per day. Children aged between 1-13 need about 150 mcg to 300 mcg of folic acid per day. Pregnant and breastfeeding women require about 600 mcg of folic acid. Total Folic acid dosage for folic acid deficient people will range from 400 mcg to 1000 mcg.
Folic acid overdose is not known to cause any deleterious effect on the human body. The excess folic acid ingested is flushed out or excreted in the urine, without leading to any health problems. The maximum dosage recommended for men and women over the age of 19 should not be more than 1000 mcg of the vitamin each day. Consumption of more than 1000 mcg on a daily basis, for a long period of time, can result in some symptoms like: Diarrhea, insomnia, digestive problems (such as nausea or gas), rash, zinc deficiency, numbness in the mouth or tongue, fatigue, inability to concentrate, psychotic behavior, bitter taste in the mouth, irritability, excitability, or hyperactivity, reduced appetite, insomnia, depression, seizures, allergic reactions like swelling on face, throat, lips or tongue etc. The treatment of folic acid overdose depends on the overdose symptoms caused. If you feel you are experiencing an overdose of folic acid, seek medical attention immediately/visit your treating doctor/gynecologist for further evaluation and assistance.
Take care.