When talking to your patients about complementary health approaches, you want to be able to answer the question: Is there any scientific evidence that this complementary product or practice works and is safe? The resources on this page will help inform you about what the science says (limited to the past 5 years).
Açaí
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Acupuncture
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Acupuncture for Chronic Pain
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Aging
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Aloe Vera
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Alzheimer's Disease / Dementia
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Antioxidants
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Anxiety
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Anxiety and Complementary Health Approaches
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Artemisinin
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Arthritis
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Asthma
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Attention-Deficit Hyperactivity Disorder (ADHD)
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Autism
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Avermectin
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
Ayurvedic Medicine
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Benign Prostatic Hyperplasia and Complementary Health Practices
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Black Cohosh
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Bodybuilding
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Calcium
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Cancer
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Cannabis
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Chamomile
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Chelation for Coronary Heart Disease
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Chiropractic
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Cholesterol
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Chondroitin and Glucosamine
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Cold and Flu
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Cranberry
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Creatine
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Cupping
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Depression
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Dermatitis, Atopic, Acne, Impetigo, Psoriasis, Rosacea
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Detox Diets
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Diabetes
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Dietary Supplements and Safety
Dimethyl Sulfoxide (DMSO) and Methylsulfonylmethane (MSM) for Osteoarthritis
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Echinacea
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Erectile Dysfunction
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Evening Primrose Oil
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Eye Conditions
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Fenugreek
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Fibromyalgia
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Folic Acid and Pregnancy
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Garlic
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Ginkgo
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Ginseng
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Headache
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Heart Disease
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Hepatitis C
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Hepatitis C and Silymarin
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Herb-Drug Interactions
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Hormones
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Hypnosis
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Inflammation
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Irritable Bowel Syndrome
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Kratom
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
Low Back Pain
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Massage
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Meditation
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Menopause
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Military Personnel
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Milk Thistle
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Multiple Sclerosis
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Natural Products Marketed for Disease Prevention and Wellness
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Naturopathy
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Omega-3 and Cardiovascular Diseases
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Omega-3 Fatty Acids
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Omega-3 Fatty Acids and Prostate Cancer
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Osteoarthritis
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Pain
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Parkinson's Disease
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Pediatric Immunization Controversy
Pediatrics
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Placebo Effect
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Literature on Placebo Effect (PubMed®)
Post-Traumatic Stress Disorder
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Probiotics
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Qi Gong
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Reflexology
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Reiki
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Reservatrol
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Safety and Complementary Therapies
Saw Palmetto
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Seasonal Allergies
- Randomized Controlled Trials (PubMed®)
Seasonal Allergies (Allergic Rhinitis)
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
Silymarin
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Skin Conditions
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Sleep Disorders
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Smoking Cessation
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Soy
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Spinal Manipulation
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Spinal Manipulation and Low-Back Pain
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
St. John's Wort
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
St. John’s Wort and Depression
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
St. John’s Wort Herb-Drug Interactions
- Herb-Drug Interactions (PubMed®)
Stress
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Tai Chi
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Tea
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
- Herb-Drug Interactions (PubMed®)
Traditional Chinese Medicine
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Urinary Tract Infections and Complementary Health Practices
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Vitamin D
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Volatile Oils
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Weight Loss
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Yoga
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)
Zinc for Common Colds
- Systematic Reviews/Reviews/Meta-analyses (PubMed®)
- Randomized Controlled Trials (PubMed®)