Important Side Effects Of Vitamin B Complex Supplements

Vitamin B Complex Supplements



Vitamin B complex tablets are useful source of B vitamins that are needed for proper metabolism. These easily get dissolved during digestive processes to promote body functions. Usually, side effects do not occur as long as right prescribed amounts of vitamin B complex are being administered. Only, in case one uses higher than recommended amounts of Vitamin B complex pills, one may develop allergic reactions to it.

The excess consumption of vitamin B complex is signaled in the form of constipation, abdominal pain, dizziness, nausea, frequent urination, skin redness, itching, urine color change and black stool formation. Under severe cases, a person develops allergy for vitamin B complex and may develop a sudden itch or rash, wheezing, swelling, kidney stones and hives.



In such situation, one should stop using vitamin B complex right away, even if used according to prescribed dosages only. One must consult the health specialist and get analyzed for allergic reactions to get recovered from them. These severe allergic affects, if not treated or altered on time can result in life threatening complications too.

Important Side Effects Of Vitamin B Complex Supplements

Vitamin B complex comprises of group of eight B Vitamins from vitamin B1 to Vitamin B3, vitamin B5 to vitamin B7 and vitamin B9 and Vitamin B12. Each of these B complex vitamins imparts a specific role in proper maintenance and functioning of the body.

Vitamin B complex supplements are normally used to suffice the adequate needs of the body, when these are not achieved through regular diet alone. Side effects that may occur with overdose can be easily lessened by improving the dose in majority of the cases.

Dizziness And Chest Discomfort

Dizziness And Chest Discomfort

Though rarely, an overdose of vitamin B1 can lead to nausea, fluid retention, sweating, restlessness and weakness.

Under severe cases, it may also lead to dizziness, chest discomfort, discoloration of skin, swelling of face or tongue and breathlessness. Allergic reactions of vitamin B1 can develop hives, rashes or itching over the skin surface.

Increased Urination And Diarrhea

Increased Urination And Diarrhea

Riboflavin component of vitamin B complex may result in change of urine color from yellow to orange, but is a harmless change.

Under higher doses of vitamin B2, it can lead to diarrhea or increased urination. In severe cases, it may also lead to swelling of lips, face, tongue or throat.

Numbness Of Hands And Feet

Numbness Of Hands And Feet

Higher doses of vitamin B5 do not show much of side effects and is usually harmless. But, high doses of vitamin B6 can lead to nervous and brain system troubles that can range from numbness majorily in feet and hands to poor coordination and fatigue.

Vitamin B7 (Biotin) is not known to show any side effects in higher doses, but in pregnant women may lead to shrinkage of placenta that may result into a miscarriage or danger to life of the fetus.

Joint Pain Or Swelling

Joint Pain Or Swelling

High doses of Vitamin B3 can lead to heartburn, stomach upset, vomiting and dizziness. Under severe cases, it may result into irregular heartbeat, a persistent headache, legs or arms swelling, blurred vision or joint pain.

Patient at times may also experience incessant nausea, abdominal pain, yellowing of eyes, black or blood red stools and muscle or joint pain.

Heart Problems

Heart Problems

Over usage of folic acid (vitamin B9) puts one at risk of heart problems or heart attack. One may also develop a prostate or lung cancer. Higher doses of vitamin B12 (cyanocobalamin) can result into increased formation of blood clots, diarrhea and itching.


Caution: Please use Home Remedies after Proper Research and Guidance. You accept that you are following any advice at your own risk and will properly research or consult healthcare professional.