The Dangers of Fiber Supplements

Fiber supplements can help you add more fiber into your daily diet, but there are a few side effects that you need to know about before you start taking them on a regular basis.  Ingesting too much fiber can lead to several problems including mineral depletion, constipation, interference with medication and severe allergic reactions.

Mineral Depletion

Although fiber can increase mineral and vitamin absorption by holding food in the digestive tract longer, it can also have the opposite effect if taken in large doses.  Taking too much fiber can deplete your body of minerals and vitamins.  Insoluble fiber can bind to essential minerals such as calcium, copper, iron and zinc, which can result in their depletion from the body.

Constipation

Many people use fiber supplements to restore digestive balance, but taking too much fiber can have the opposite effect.  Once in the body, fiber soaks up a lot of water.  As a result, the digestive tract can become dry, making bowel movements rare and uncomfortable.  Too much fiber can also lead to gas, stomach pain and cramps.  People who plan to take fiber supplements on a regular basis should increase their daily water intake.

Medication Interference

Fiber supplements can interfere with drugs or other supplements, because fiber can affect the way the body absorbs other medications and nutrients.  People should avoid taking fiber supplements within several hours of taking medications or other supplements. 

Allergic Reactions

While very rare, allergic reactions can occur in some people after ingestion of fiber supplements.  People who experience severe symptoms such as vomiting, trouble breathing, itching or chest pain after taking fiber supplements should seek emergency help immediately.