Can too much B-complex be harmful?

Potential Side Effects However, taking supplements that contain excessively high and unnecessary quantities of B-complex vitamins could lead to serious side effects. High doses of supplemental B3 (niacin) may lead to vomiting, high blood sugar levels, skin flushing and even liver damage ( 34 ).

Are B vitamins toxic at high doses?

There is no toxic dose established in humans. However, at doses higher than 50 mg per day, some side effects such as skin flushing can occur. Therapeutic doses of 1500 to 1600 mg per day can be given, but with a risk of liver toxicity, especially in the presence of pre-existing liver disease.

Is B-complex safe to take?

However, some people benefit from taking a B-complex supplement. People can find these supplements in health or drug stores, or they can choose between brands online. A B-complex supplement is generally safe when a person takes it as directed. However, only take very high doses of B vitamins under a doctor’s guidance.

Which of the following are the causes of vitamin B-complex deficiency?

Vitamin B12 Deficiency

• Atrophic gastritis, in which your stomach lining has thinned.
• Pernicious anemia, which makes it hard for your body to absorb vitamin B12.
• Conditions that affect your small intestine, such as Crohn’s disease, celiac disease, bacterial growth, or a parasite.

What happens when you take too little vitamin B complex?

Symptoms of vitamin B12 deficiency A vitamin B12 deficiency can lead to disruption in the nervous system and the circulatory system. Vitamin B12 deficiencies can lead to megaloblastic anemia, a condition where the bone marrow produces large abnormally shaped red blood cells that do not function properly.

What’s the difference between vitamin B12 and B complex?

The difference between Vitamin B12 and B Complex is that Vitamin B12 is just one of the eight B vitamins that form the B complex. Together, the set of 8 B vitamins that make up the B complex are presented in the optimum balance to provide the recommended daily amount.

Why are there so many B vitamins?

This is because the B-group vitamins are needed to help the body to use the energy-yielding nutrients (such as carbohydrates, fat and protein) for fuel. Other B-group vitamins are needed to help cells to multiply by making new DNA.

What is the difference between B complex and B12?