Evidence supporting the use of: Vitamin D
For the health condition: Concentration (poor)

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Synopsis

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

Vitamin D has garnered scientific interest regarding its role in cognitive function, including concentration. Several observational studies have reported that individuals with vitamin D deficiency may exhibit poorer cognitive performance, including attention and executive function, compared to those with sufficient levels. The proposed mechanisms involve vitamin D’s neuroprotective properties, such as its role in reducing neuroinflammation, promoting neuronal growth, and regulating neurotransmitter synthesis. Some cross-sectional and longitudinal studies have found associations between low vitamin D levels and cognitive impairment or decline, but these studies often focus broadly on cognition in older adults rather than specifically on concentration in the general population.

Randomized controlled trials (RCTs) investigating vitamin D supplementation’s effects on concentration or attention have produced mixed results. Some small studies in deficient or elderly populations have noted modest improvements in certain aspects of attention or overall cognitive function with supplementation, but others have found no significant benefit. The current scientific consensus is that while vitamin D is essential for overall health and severe deficiency can impact brain function, robust evidence directly linking supplementation to improved concentration in the general population is lacking. Major health organizations do not currently recommend vitamin D specifically to treat poor concentration unless deficiency is present.

In summary, while there is some scientific rationale and limited evidence for a connection between vitamin D status and concentration, the strength of evidence is low (2/5), and more high-quality research is needed to establish causality and clinical relevance.

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Other health conditions supported by vitamin D

Acne
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Amenorrhea
Anemia
Anorexia
Apathy
Arrhythmia
Arteriosclerosis
Arthritis
Asthma
Autism
Autoimmune Disorders
Backache
Birth Defects (prevention)
Body Building
Broken Bones
Calcium Deficiency
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Cardiovascular Disease
Celiac Disease
Chronic Obstructive Pulmonary Disorder
Colds (antiviral)
Colds (general)
Colds (prevention)
Colds (with fever)
Concentration (poor)
Concussions
Confusion
Congestive Heart Failure
Contagious Diseases
Convalescence
Convulsions
Cramps (menstrual)
Cramps and Spasms
Crohn's Disease
Cystic Breast Disease
Cystic Fibrosis
Dandruff
Debility
Dementia
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Erectile Dysfunction
Estrogen (low)
Fatigue
Fibroids (uterine)
Fibromyalgia Syndrome
Fibrosis
Grave's Disease
Grief and Sadness
Hair (loss or thinning)
Hair Care (general)
Hashimoto's Disease
Headache (cluster)
Heart (weakness)
Hypertension
Hypothyroid
Infection
Infection (bacterial)
Infection (viral)
Infertility
Inflammation
Inflammatory Bowel Disorders
Influenza
Injuries
Irritable Bowel Syndrome
Itching
Knees (weak)
Leaky Gut Syndrome
Leprosy
Lesions
Leukemia
Lou Gehrig's Disease
Lupus
Lymphoma
Melanoma
Memory and Brain Function
Menopause
Menstrual Irregularity
Mental Illness
Metabolic Syndrome
Migraine
Miscarriage (prevention)
Mood Swings
Multiple Sclerosis
Muscle Tone (lack of)
Muscular Dystrophy
Myasthenia Gravis
Nephritis
Nerve Damage
Nervous Exhaustion
Numbness
Nursing
Obsessive Compulsive Disorder
Oral Surgery
Osteoporosis
Pain (general remedies for)
Pancreatitis
Paralysis
Parkinson's Disease
Peripheral Neuropathy
PMS (general)
PMS Type D
PMS Type H
PMS Type P
PMS Type S
Pneumonia
Polyps
Post Partum Depression
Post Partum Weakness
Pregnancy (herbs and supplements for)
Progesterone (low)
Prostatitis
Psoriasis
Rheumatoid Arthritis
Schizophrenia
Sciatica
Seasonal Affective Disorder
Senility
Tuberculosis