Vitamin B9 (folinic acid)

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Other names for Vitamin B9 (folinic acid)

5-formyl tetrahydrofolate
5-formyl-tetrahydrofolate
5-formyltetrahydrofolate
5-formyltetrahydrofolate calcium
calcium 5-formyltetrahydrofolate
folic acid
folinic acid

Synopsis of Vitamin B9 (folinic acid)

History

Vitamin B9, also known as folinic acid, has played a pivotal role in the history of medicinal remedies, particularly within the realms of nutrition and preventive healthcare. Discovered in the 1940s as a derivative of folic acid, folinic acid was recognized for its superior bioavailability and therapeutic benefits, especially for individuals with impaired folate metabolism. Historically, before the isolation of pure folates, traditional healers and herbalists often utilized folate-rich plants such as spinach, liverworts, and legumes to address symptoms of anemia, fatigue, and poor growth, intuitively leveraging the restorative properties of what would later be understood as B9.

Folinic acid’s medicinal use expanded as its critical role in DNA synthesis and cellular repair became evident. It has been instrumental in the prevention and treatment of megaloblastic anemia, and its inclusion in prenatal supplements has significantly reduced neural tube defects, marking a major public health achievement. In modern herbal medicine, folinic acid is often paired with other B vitamins, as well as iron and herbal extracts like nettle or dandelion root, to create synergistic blends that enhance energy, support detoxification, and optimize metabolic function.

The positive contributions of folinic acid are manifold—its ability to counteract folate deficiencies, improve cognitive function, support cardiovascular health, and aid recovery during illness underscores its status as a nutritional cornerstone. Through both historical remedies and contemporary herbal combinations, folinic acid continues to empower holistic wellness and exemplifies the profound impact of thoughtful nutrient integration in health and healing.

Traditional and scientific validation

Vitamin B9, also known as folinic acid (distinct from folic acid), is a biologically active form of folate that plays a crucial role in DNA synthesis, cellular division, and red blood cell formation. Its historical use dates back to the mid-20th century, when researchers recognized the significance of folate derivatives in preventing and treating megaloblastic anemia and certain congenital defects. Unlike folic acid, folinic acid bypasses some metabolic steps, making it particularly valuable for individuals with genetic mutations affecting folate metabolism.

Scientific validation for folinic acid stems from its well-documented medical applications. Clinical studies have demonstrated its efficacy in reducing the toxic side effects of methotrexate during chemotherapy, as folinic acid can rescue healthy cells from methotrexate-induced folate deficiency without diminishing the drug’s effectiveness against cancer cells. Additionally, folinic acid supplementation has been shown to improve outcomes in individuals with certain inborn errors of metabolism, such as cerebral folate deficiency, and may support neurological development in these patients.

While folinic acid’s role in general nutritional supplementation is less comprehensively studied than folic acid, its superior bioavailability and immediate biological activity make it a promising ingredient for specific population groups. Research continues into its potential benefits for neurological health, pregnancy, and immune function. Although more rigorous trials are needed to confirm its broader health effects, current evidence highlights folinic acid’s important contributions to medical nutrition and its established value in targeted clinical scenarios.

Vitamin B9 (folinic acid) is used for these health conditions

Anemia (Scientific)
Autism (Scientific)
Birth Defects (prevention) (Scientific)
Cancer Treatment (reducing side effects) (Scientific)
Chemotherapy (reducing side effects) (Scientific)
Depression (Scientific)
Fatigue (Scientific)
Leukemia (Scientific)
Miscarriage (prevention) (Scientific)
Pregnancy (herbs and supplements for) (Scientific)
Schizophrenia (Scientific)
Wasting (Scientific)

Vitamin B9 (folinic acid) is used to support these body systems

Blood (Scientific)
Brain (Scientific)
Gastrointestinal Tract (Scientific)
Immune System (Scientific)
Intestinal System (Scientific)
Reproductive System (Scientific)
Small Intestines (Scientific)

Products containing Vitamin B9 (folinic acid)

We currently have no products on Caring Sunshine that contain this ingredient.

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