Evidence supporting the use of: Vitamin C
For the health condition: Urinary Tract Infections

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Synopsis

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

Vitamin C (ascorbic acid) has been traditionally recommended to help prevent or treat urinary tract infections (UTIs). The rationale behind this practice is that vitamin C increases the acidity of urine, which was thought to inhibit the growth of pathogenic bacteria in the urinary tract. This idea became popular in the mid-20th century, and vitamin C is still sometimes suggested as a home remedy or adjunct therapy.

However, scientific evidence supporting this use is limited and inconclusive. Some small studies have suggested that vitamin C supplementation may marginally reduce the recurrence of UTIs, especially in pregnant women, but the data are weak and inconsistent. Larger, well-controlled clinical trials have generally not demonstrated a significant benefit of vitamin C for either the prevention or treatment of UTIs. The urinary acidification effect of orally consumed vitamin C is also relatively mild and transient, and may not be sufficient to meaningfully affect bacterial growth.

Current clinical guidelines do not endorse vitamin C as a primary or adjunctive therapy for UTIs. Despite its popularity in traditional and alternative medical circles, health professionals typically recommend evidence-based treatments, such as antibiotics, for UTIs. In summary, the use of vitamin C for UTIs is justified primarily by tradition rather than robust scientific validation.

More about vitamin C
More about Urinary Tract Infections

Other health conditions supported by vitamin C

Abrasions
Abscesses
Acne
Acquired Immune Deficiency Syndrome
Addictions (general remedies for)
Addison's Disease
Adrenal Fatigue
Age Spots
Aging (prevention)
Alcoholism
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Anal Fistula or Fissure
Anemia
Antibiotics (alternatives to)
Antibiotics (side effects of)
Anxiety
Arteriosclerosis
Arthritis
Asthma
Athletic and Exercise Aids
Autism
Autoimmune Disorders
Bell's Palsy
Bites and Stings
Bladder Infection
Bleeding (external)
Bleeding (internal)
Blood Poisoning
Boils
Bronchitis
Bruises (healing)
Bruises (prevention)
Burns and Scalds
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Canker Sores
Capillary Weakness
Carbuncles
Cardiovascular Disease
Cartilage Damage
Cataracts
Cervical Dysplasia
Chemical Poisoning
Chemotherapy (reducing side effects)
Chicken Pox
Cholesterol (high)
Chronic Obstructive Pulmonary Disorder
Cold Sores
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colon (atonic)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (sinus)
Conjunctivitis
Contagious Diseases
Convalescence
Copper Toxicity
Cough (dry)
Cough (general)
Cuts
Cystic Breast Disease
Cystic Fibrosis
Debility
Dementia
Denture Sores
Depression
Diabetes
Diabetic Retinopathy
Environmental Pollution
Epstein Barr Virus
Eye Problems
Eyesight (poor)
Fatigue
Fatty Liver Disease
Free Radical Damage
Gall Stones
Gastritis
Gingivitis
Glaucoma
Gonorrhea
Gout
Hair (loss or thinning)
Hair Care (general)
Heart (weakness)
Heavy Metal Poisoning
Hemorrhoids
Hepatitis
Herpes
Hot Flashes
Hypertension
Infection
Infection (bacterial)
Infection (viral)
Infertility
Inflammation
Inflammatory Bowel Disorders
Influenza
Injuries
Knees (weak)
Laryngitis
Lead Poisoning
Lesions
Leucorrhea
Leukemia
Ligaments (torn or injured)
Liver Detoxification
Lyme Disease
Macular Degeneration
Mastitis
Measles
Memory and Brain Function
Menorrhagia
Menstrual Irregularity
Menstruation (scant)
Metabolic Syndrome
Mononucleosis
Mumps
Nose Bleeds
Oral Surgery
Osteoporosis
Pancreatitis
PMS (general)
PMS Type C
PMS Type H
Pneumonia
Post Partum Weakness
Pregnancy (herbs and supplements for)
Progesterone (low)
Prolapsed Uterus
Prostatitis
Radiation Sickness
Rashes and Hives
Restless Leg Syndrome
Rheumatoid Arthritis
Rhinitis
Rhinitis, Allergic
Rosacea
Scars / Scar Tissue
Schizophrenia
Scratches and Abrasions
Scurvy
Shingles
Shock
Sinus Infection
Skin (infections)
Skin Care (general)
Sore Throat
Spider Veins
Spinal Disks
Sprains
Strep Throat
Stretch Marks
Sunburn
Surgery (healing from)
Surgery (preparation for)
Teeth (loose)
Tendonitis
Thrush
Tickle in Throat
Tonsillitis
Tooth Extraction
Toxemia
Triglycerides (high)
Tuberculosis
Ulcerations (external)
Ulcers
Uric Acid Retention
Urinary Tract Infections
Vaginitis
Varicose Veins
Warts
Wounds and Sores
Wrinkles

Products containing vitamin C

Nature's Sunshine Love and Peas (Sugar Free)
Nature's Sunshine Adrenal Support
Nature's Sunshine Bowel Detox
Nature's Sunshine Children's Elderberry Immune
Nature's Sunshine Children's MultiVitamin & Mineral
Nature's Sunshine Cortisol Formula (Nature's Cortisol Formula)
Nature's Sunshine Defense Maintenance
Nature's Sunshine Detox Basics (Best used by 7/31/25)
Nature's Sunshine Dieter's Cleanse
Nature's Sunshine Glandular System
Nature's Sunshine Grapine With Protectors (SynerPro)
Nature's Sunshine Hepatic System
Nature's Sunshine Iron (Chelated)
Nature's Sunshine Love and Peas
Nature's Sunshine Marine Collagen
Nature's Sunshine Marine Glo Collagen
Nature's Sunshine Master Gland Formula®
Nature's Sunshine Mega-Chel
Nature's Sunshine Milk Thistle Combination
Nature's Sunshine MultiVitamin & Mineral (SynerPro)
Nature's Sunshine MultiVitamin & Mineral (Time Release)
Nature's Sunshine Natural Changes
Nature's Sunshine Nature's Prenatal
Nature's Sunshine Nature's Harvest
Nature's Sunshine Nervous System (30 Day Program)
Nature's Sunshine Nutri-Calm
Nature's Sunshine Nutri-Calm
Nature's Sunshine Perfect Eyes
Nature's Sunshine Power Beets Pouch
Nature's Sunshine Power Beets To-Go Packs
Nature's Sunshine Power Greens
Nature's Sunshine Power Greens To-Go
Nature's Sunshine Skeletal Strength
Nature's Sunshine Solstic Twenty-Four
Nature's Sunshine Solstic Immune
Nature's Sunshine Solstic Revive
Nature's Sunshine Structural System (30 Day Program)
Nature's Sunshine Super Supplemental
Nature's Sunshine Super Supplemental (Without Iron)
Nature's Sunshine Super Trio
Nature's Sunshine Vari-Gone
Nature's Sunshine Vitamin C (1000 mg, Time Release)
Nature's Sunshine Vitamin C (1000 mg, Time Release)
Nature's Sunshine Vitamin C Ascorbates
Nature's Sunshine Chewable Vitamin C
Nature's Sunshine Citrus Bioflavonoids (Vitamin C)
Nature's Sunshine Zinc Lozenge