Relationship: Brain and vitamin A

Evidence supporting the use of: Vitamin A
For the body system: Brain

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Vitamin A is an essential micronutrient primarily known for its role in vision, immune function, and cellular growth. Its use to support the brain and nervous system is based on scientific evidence, although the strength of this evidence for direct cognitive or neurological benefits in healthy individuals is modest. Vitamin A is crucial for normal brain development, especially during fetal and early postnatal periods. Retinoic acid, a metabolite of vitamin A, regulates gene expression involved in neuronal differentiation, synaptic plasticity, and neurogenesis. Animal studies have shown that vitamin A deficiency can impair learning, memory, and synaptic function. In particular, retinoic acid signaling is important for hippocampal function, a brain region critical for memory formation. However, in human studies, the evidence that vitamin A supplementation directly enhances cognition or neurological health in the general population is limited. Severe deficiency can lead to neurological symptoms, but this is rare in developed countries. Most research supports vitamin A's role in brain health as part of overall nutritional status, rather than as a targeted cognitive enhancer. Thus, while there is a scientific basis for vitamin A being important for the brain, its use specifically to "support the brain body system" beyond preventing deficiency is not strongly validated.

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Other body systems supported by vitamin A

Blood
Brain
Digestive System
Eyes
Gastrointestinal Tract
Glandular System
Hair
Immune System
Intestinal System
Lungs
Mucus Membranes
Peyer’s patches
Reproductive System
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Senses
Skin
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Teeth
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Other body systems supported by vitamin A

Products containing vitamin A

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Evidence supporting the use of: Vitamin A
For the body system: Brain

Table of Contents

Synopsis

Other ingredients that support Brain

Health Concerns

Brands

Evidence supporting the use of: Vitamin AFor the body system: Brain

Table of Contents

Synopsis

Other ingredients that support Brain

Other body systems supported by vitamin A

Products containing vitamin A

Evidence supporting the use of: Vitamin A
For the body system: Brain