Does Fish Oil Work? What to Know Before Choosing a Supplement
Fish oil provides EPA and DHA, but its benefits depend on the dose, formulation and purpose. Learn what the evidence shows and what to check on the label.
Health
How diet and lifestyle influence the body.
16 articles
High Blood Pressure: Which Diet Changes Have the Best Evidence?
Reducing sodium, following a DASH-style diet, getting enough potassium when safe, and cutting alcohol are among the best-supported dietary changes for high blood pressure.
High Triglycerides: How Diet and Lifestyle Can Help
High triglycerides can improve with healthier eating, physical activity, weight management, and less added sugar and alcohol. Learn which changes matter most.
Melatonin for Sleep: When It May Help and Key Precautions
Melatonin can help with certain sleep problems, but it is not a universal sleep aid. Learn where the evidence is strongest, its potential side effects, and key safety considerations.
Does a Slow Metabolism Exist? What Affects Energy Expenditure
A slow metabolism can exist, but it rarely explains weight-loss difficulty on its own. Learn how body size, muscle, movement, age, genetics and metabolic adaptation affect energy expenditure.
Can Too Little Sleep Increase Hunger and Make Weight Loss Harder?
Too little sleep may increase calorie intake and make weight management harder. Learn what research says about sleep, hunger, appetite and weight loss.
Does Ginger Help With Nausea, Digestion, and Inflammation?
Ginger may help certain types of nausea and can affect gastric motility and inflammatory markers. Learn where the evidence is strongest and where uncertainty remains.
Is Coffee Good or Bad for You? Benefits, Caffeine and Safe Intake
Coffee can fit into a healthy diet, but caffeine dose and individual sensitivity matter. Learn what research says about benefits, sleep, blood pressure, pregnancy and safe intake.
Does Cinnamon Help Control Blood Sugar? What Science Says
Cinnamon may modestly lower blood glucose in some people, but it cannot replace diabetes treatment. Learn what studies show about glucose, HbA1c, dosage, cinnamon types and safety.
Does Green Tea Help You Lose Weight? What Evidence Shows
Green tea may slightly increase energy expenditure, but its effect on body weight is small. See what research says about catechins, caffeine, and safety.
Coenzyme Q10: What We Know About Benefits and Supplementation
Coenzyme Q10 plays a role in cellular energy production and is widely sold as a supplement. Learn where evidence supports potential benefits, how it is studied, and the main safety considerations.
Does Dietary Cholesterol Raise Blood Cholesterol?
Dietary cholesterol can raise LDL in some people, but the effect varies. Learn why saturated fat and the overall eating pattern often matter more. ([PubMed][2])
How Diet Affects LDL Cholesterol and Heart Health
Learn how saturated and trans fats, soluble fiber and unsaturated fats can influence LDL cholesterol and which dietary changes support cardiovascular health.
Turmeric and Curcumin: Real Benefits and Research Limitations
Turmeric and curcumin are linked to anti-inflammatory and joint-health benefits. Learn what clinical research supports, what remains uncertain, and the key safety concerns.
Is Sparkling Water Bad for You? What Science Says
Sparkling water hydrates and is generally safe. Learn what the evidence says about teeth, reflux, bloating, bones, sodium and daily consumption.
Does Ashwagandha Work? Benefits, Limits, and Safety
Ashwagandha may help with stress and sleep, but evidence varies by outcome. Learn what research shows about benefits, studied doses, side effects, interactions, and safety.
Explore by category
NutritionInformation about nutrients, diet and science.
FoodsBenefits, nutrients and characteristics of key foods.
HealthHow diet and lifestyle influence the body.
FitnessNutrition related to exercise and body composition.
RecipesSimple, nutritious and balanced recipes.
ScienceResearch, studies and discoveries related to nutrition.