There are some side effects of Folic Acid that you should be aware of. While they rarely occur you need to identify them so that you can see your doctor about reducing the amount you take or stop taking it all together. The side effects can be mild or severe. Mild side effects include are nausea, loss of appetite, bloated abdomen, flatulence, bitter taste, insomnia or difficulty concentrating. Your doctor will likely reduce the amount of Folic Acid you take and monitor the results closely.

If you are experiencing severe side effects to Folic Acid such as difficulty breathing, closing of the throat, swelling of your lips, tongue or face, or hives then you need to see immediate medical attention and stop taking the Folic Acid. Other side effects that have been noted include fever, general weakness or discomfort, reddened skin, shortness of breath, skin rash or itching, and wheezing and they can vary in severity. For more info see http://www.omegaflaxseedoil.com/benefits/omega3/essential_Fatty_Acids_Found_In_Eggs.html on acid enriched eggs

The University of Maryland reports that the instances of having a side effect from Folic Acid is rare but if you take a large dose of 15,000 mcg or more you may experience stomach pain, disrupted sleep patterns, skin reactions, and seizures. According to the Encyclopedia of Alternative Medicine, Folic Acid is very safe in doses of 5,000 mcg or less. It is the larger doses that cause the side effects including nausea, decreased appetite, bloating, gas, decreased ability to concentrate, and insomnia to occur. If you suffer from seizures a large dose of Folic Acid will affect the effectiveness of the common medication Phenytoin, also known as Dilantin.

If you take Folic Acid, you should add a supplement of B Vitamins, especially 12, because the Folic Acid can lead to a deficiency. While the side effects from Folic Acid rarely occur, the risk is higher if you have a Vitamin B deficiency. If you experience any of these symptoms while taking Folic Acid, make sure you talk to your doctor so action can be taken.