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What symptoms or conditions suggest a Vitamin D deficiency?

Are there symptoms for vitamin D deficiency? The last decade has seen a renaissance in our understanding of the many roles of Vitamin D in our well-being, with hundreds of studies defining ever more precisely its role in health and … Continue reading

Commitment to Quality

We comply with all applicable US Food and Drug Administration (FDA) regulations and follow Good Manufacturing Practices (GMPs) that are designed to ensure that our products meet the highest quality standards.

Formulation Philosophy

We utilize pure, bio-available vitamin and mineral forms, and avoid the use of added colors, flavors, binders, lubricants, and coatings.


Partners in Research

Bio-Tech Pharmacal, Inc. supplies products to over 60 prestigious institutions for use in clinical research.

Autoimmunity Centers of Excellence
Center for Autism and Related Disorders
Charles Drew University of Medicine and Science
Children's Hospital of Philadelphia
Cleveland Clinic
Cystic Fibrosis Therapeutics Foundation
Emory Global Health Institute
Eunice Kennedy Shriver National Institute of Child Health and Human Development
Feinstein Institute for Medical Research
Jewish Home, San Francisco
Mayo Clinic
Medical College of Georgia
Medical College of Wisconsin
Medical University of South Carolina
Memorial Sloan-Kettering Cancer Center
Mount Sinai School of Medicine
National Center of Tuberculosis and Lung Diseases
National Heart, Lung, and Blood Institute (NHLBI) AsthmaNet
National Institute of Allergy and Infectious Diseases
National Institute of Mental Health
National Institute on Aging (NIA)
National Institute on Drug Abuse
National Jewish Health
National Kidney Foundation
Oregon Health and Science University
Pennsylvania State University College of Medicine
Queens University (Ontario Canada)
Republic of Georgia National Tuberculosis Program
Rollins School of Public Health
Rutgers University
The International Heart Institute of Montana
The University of Chicago Medical Center
Tufts University – Jean Mayer USDA Human Nutrition Research Center on Aging
University Hospital Case Medical Center
University of California, San Diego
University of Colorado Integrative Physiology of Aging Laboratory
University of Florida College of Medicine
University of Kansas Medical Center
University of Michigan Medical Center
University of Minnesota - Clinical and Translational Science Institute
University of North Carolina School of Medicine
University of Rochester Medical Center
University of Wisconsin – Madison
...and many more!