Side Effects of Inositol Powder

Taken mixed with water or juice, inositol powder has many purported uses for your health. Some manufacturers claim it can help you overcome depression and anxiety, while others promote it to help lower cholesterol and high blood pressure. states that inositol niacinate may help treat blood circulation problems as well as lower triglyceride levels 1. Unlike true medicines, inositol powder has not faced the rigorous testing required to prove these claims by the U.S. Food & Drug Administration.

Is This an Emergency?

If you are experiencing serious medical symptoms, seek emergency treatment immediately.

Appetite Changes

Taking inositol powder may cause you to have less desire to eat your normal amount of food. You may feel as if your stomach already is full or the sight of food may make you sick. These appetite changes typically happen when you begin to use the supplement and should stop on their own. If the side effect continues, you should consult your physician.


Lightheadedness or dizziness may occur when you first begin taking this supplement. Lightheadedness may make you feel as though you will faint, while dizziness may cause a sensation of spinning or unplanned movement. These adverse reactions can occur together or separately. While neither constitutes a serious side effect, either can cause you to lose your balance, which may produce injuries if you fall. Dizziness and lightheadedness should pass as you become accustomed to taking inositol powder. If either condition is severe or lingers, speak with your doctor.

Skin Color Changes

Skin color changes such as flushing may occur when you begin using inositol powder. Flushing may make the skin turn red and warm and produce sweating, but it should go away the first week while taking this supplement. If it continues, seek your doctor’s counsel.

Nausea and Vomiting

Nausea and vomiting may occur because of the newness of the supplement and its effects on your digestive system. Your body needs to get used to this type of supplement. Once your body does, the side effect should go away on its own. Remember to always check with your doctor before starting any supplement or medicine.

Loose Stools

The use of inositol powder may induce diarrhea or loose stools. You may feel as if you need to use the bathroom more often. You could also suffer mild cramping with this common, temporary and non-serious side effect.