Vitamin B1 Monograph

Scientific name of Vitamin B1:
Thiamine

Action of Vitamin B1:
Carbohydrate metabolism; metabolism of branched-chained amino acids

Vitamin B1 is used for these functions in the body and brain:
Cognitive health; nervous system function

Find Vitamin B1 in these Clarocet blends:

Clarocet NRI® Immediate Response Capsules™
promote fast-acting relaxation when you need it most.

Clarocet ERT® Extended Release Tablets™
promote positive mood balance all day strong.

Clarocet CS® Controlled Release Tablets™
promote long-lasting energy and mental sharpness.

Clarocet PM® Rapid Release Capsules™
promote a deep, restful night's sleep.

Clarocet Junior® Easy-to-Swallow Tablets™
support Emotional Wellness in kids ages 7 thru 13.

An Overview of Vitamin B1

B1, or Thiamine, is a water-soluble vitamin necessary in relatively small amounts. It is usually available in such foods as fortified breads, cereals, pasta, whole grains, lean meats, fish, dried beans, peas and soybeans.

Vitamin B1 supplementation has been shown to provide positive support for:

  • Mild mood changes and fatigue caused by everyday stress
  • Lack of focus, mental clarity, difficulty concentrating and poor memory function caused by everyday stress

Thiamine is an essential vitamin that the body is unable to produce on its own. It must be replenished every day through diet and/or supplementation. Thiamine deficiency may result in fatigue, headaches, visual difficulties and mental confusion.

Science and Pharmacology of Vitamin B1

B1, or Thiamine, is a cofactor. Cofactors are the most important components required to maintain fundamental processes throughout the body. Basic nervous system functions such as neurotransmitter synthesis and healthy cell-to-cell communication would not be possible without the presence of necessary vitamin, mineral and amino acid cofactors.

Supplementing a balanced diet with Vitamin B1 has been clinically shown to promote energy and positive mood balance. Because of its nutritive value, Thiamine is used in several Clarocet formulations along with other essential vitamins, minerals and amino acids that are associated with healthy nervous system function.

Vitamin B1 Safety and Usage

Recommended Daily Allowances (RDAs) are the amounts of vitamins and minerals needed to provide for adequate nutrition in most healthy persons. RDAs for a given nutrient may vary depending on a person’s age, sex and physical condition, including considerations like pregnancy.

This chart shows the recommended daily amounts of Vitamin B1 for different groups:

Infants and children (Birth to 3  years)  0.3 – 0.7 mg
4 to 6 years of age  0.9 mg
7 to 10 years of age  1 mg
 Adolescent and adult males  1.2 – 1.5 mg
Adolescent and adult females  1 – 1.1 mg
Pregnant females 1.5 mg
 Breastfeeding females  1.6 mg

What are the potential side effects of Vitamin B1?

Side effects have not been reported as a result of Vitamin B1 use.

Is Vitamin B1 safe for children?

Vitamin B1 is generally well tolerated when used in children. Because each child is unique, Vitamin B1 should be administered under the supervision of a professional healthcare provider.

Does Vitamin B1 adversely interact with prescription drugs?

Vitamin B1 has no known contraindications. If you are taking a prescription medication, it is recommended that you consult with your prescribing doctor before making any changes or additions to your current treatment plan.

What precautions should I take before beginning Vitamin B1?

Consult with your healthcare provider before beginning a wellness plan that includes dietary supplements like Vitamin B1.

Vitamin B1 Clinical Studies

1. An Overview of Thaimin (B1)
Thompson Health Care; PDR Health
Copright 2004 [Read the Full Text]

2. Thiamine supplementation mood and cognitive functioning.
Benton D, Griffiths R, Haller J.
Department of Psychology, University of Wales Swansea, UK.
Psychopharmacology (Berl). 1997 Jan;129(1):66-71. PMID: 9122365 [Read the Abstract]

3. Thiamine deficiency as a cause of metabolic acidosis.
Logan G, Goli SA, McGonagle M, Byrd RP Jr, Roy TM.
Veterans Affairs Medical Center, Mountain Home, TN, USA.
Tenn Med. 2003 Dec;96(12):553-5. PMID: 15077560 [Read the Abstract]

4. Metabolic Acidosis
Karen L Stavile, MD, Associate Director, Assistant Professor, Department of Emergency Medicine, State University of New York Health Science Center at Brooklyn
May 21, 2001 [Read the Full Text]

5. Thiamine (Vitamin B 1) (Systemic)
National Library of Medicine, Micromedex, Pharmacopeia Drug Information, Volume II
Medline Plus; Rev.:May 26, 1995 [Read the Full Text]

Related online research destinations

Last Updated: February 2012 [PHMF-02-0]