Diet & Nutrition

Food and beverages provide the energy and nutrients you need to improve health, manage disease, and reduce the risk of disease. Complete nutrition requires ingestion and absorption of vitamins, minerals, essential amino acids from protein and essential fatty acids from fat-containing food, also food energy in the form of carbohydrate, protein, and fat. Dietary habits and choices play a significant role in the quality of life, health and longevity.

The Flexitarian Diet: A Flexible Path to Better Health

The flexitarian diet offers a flexible, plant-forward approach that reduces meat intake without full elimination, improving heart health, metabolic outcomes, and environmental sustainability. Evidence links it to lower cholesterol, better weight control, reduced cancer risk, and improved nutrient sufficiency compared to strict vegan diets.

Do Superfoods Really Exist?

Mediterranean Diet

Understanding the Glycemic Index

What is a DNA Diet?

Can You Eat Too Much Fruit?

The Vegan Diet, Ethos, Affects and Advice

What are the Health Benefits of a Vegan Diet?

Low Calorie and Very Low Calorie Diets

Diabetic Diet

DASH Diet for High Blood Pressure

High Protein Diet

See more featured articles »

Caveman or Palaeolithic Diet

Diet for Obese Children and Teenagers

Diet for Overweight and Obese Pregnant Women

Vegetarian Diets for Weight Loss

Fad Diet Examples and Efficacy

FODMAP Research

Calorie and Macro Counting

Fast 5:2 Diet

Fast 5:2 Diet Evidence

The Importance of Dietary Fiber

Nutritional Needs of Young Children (Age 5-10)

How Fast Food Affects Children's Health

What is the 5:2 Diet?

The 5:2 Diet Health Benefits

Military Diet: Health Risks

What is the Military Diet?

Magnesium in the Diet and Body

What to Eat on the Military Diet

What is the BRAT Diet?

Does Red Meat Shorten Lifespan?

Benefits of Nut Consumption During Pregnancy

The Health Benefits of Walnuts

The Detrimental Effects of Ultra-processed Foods

Are Low Carbohydrate Diets Good for Type 2 Diabetes?

Can You Be Vegan and an Athlete

Dukan Diet: Pros and Cons

New Atkins Diet: Pros and Cons

Cambridge Diet: Pros and Cons

Paleo vs. Keto Diets

South Beach and Low-GI Diets

Are Artificial Food Flavors and Colorings Harmful?

Food Allergies Explained

False Alarm Hypothesis of Food Allergy

Can Food Allergies Ever be Psychological?

Food Intolerance

Causes of Food Intolerance

Is Food Packaging Harmful to Health?

Macrominerals and Trace Minerals in the Diet

What is Clean Eating?

Nutritional / Dietary Supplement

Diet Supplements and Liver Problems

Butter versus Margarine: Which is Healthier?

Coconut Oil: Health Benefits

Should We Eat Polished Rice?

Papaya: Health Benefits

Ginger: Health Benefits

Canola Oil: Is it Healthy?

Differences Between Natural Whole Fruit and Natural Fruit Juice

Genetic Factors Impacting Nutritional Requirement

Foods that Reduce Oxidative Stress and Prevent Cancer

Health Benefits of Quinoa

Healthy High Fat Alternatives to Avocado

Health Benefits of Cinnamon

How Many Calories Should You Eat Per Day?

Natural Protein Sources

Natural Sources of Vitamin D and Calcium

Organic Food Health Benefits

Recombinant Bovine Growth Hormones (rBGH) in Food

Is Palm Oil Good or Bad in Diet?

Sources of Dietary Fiber

Does Drinking 100% Fruit Juice Put on Weight?

The Health Benefits of Cilantro (Coriander)

What are Nutraceuticals?

Nutraceutical Industry

Nutraceutical Regulation

Do NAD Boosters Help You to Live Longer?

How Important Is Breakfast for Overall Health?

What is Personalized Nutrition?

What is the Viking Diet?

The Benefits of Healthy Fats

What to Know About Processed and Ultra-Processed Foods

Nutrigenomics: How Your Genes Influence Your Nutritional Needs and Health

The Principles of the Blue Zone Diet

The Health Benefits of Grass-Fed Butter

Latest Diet & Nutrition News and Research

Exercise and diet advice misses the mark in improving heart health around the globe

A leading cardiovascular disease researcher from Simon Fraser University is ringing the alarm on universal recommendations intended to improve heart health around the globe.

22 May 2025

Mild winter temperatures offer surprising mental health benefits

Higher ambient temperatures during the cold season were linked to reduced stress, improved life satisfaction, better self-reported health, and less loneliness in a large Swiss population study. While effects were modest at the individual level, they highlight the broader mental health impacts of seasonal temperature changes.

22 May 2025

Cutting back on sugary drinks may protect men’s fertility, review finds

Regular consumption of sugar-sweetened beverages is associated with lower sperm count, motility, and increased DNA damage, potentially impairing male reproductive health. This narrative review highlights dose-response effects, mechanisms, and research gaps, calling for further studies on diverse populations.

22 May 2025

Natural compounds from Brazilian plants show promise against stomach cancer

A new review was published in Volume 12 of Oncoscience on May 8, 2025, titled "The chemopreventive effects of native Brazilian plants on stomach cancer: A review of the last 25 years."

22 May 2025

Scientists discover natural compounds that tame chili pepper heat

If you've ever regretted ordering a spicy meal, take note: A new study identifying molecules that suppress the heat of chili peppers hints at the possibility of adapting these compounds into an "anti-spice" condiment for food that's too fiery to eat.

22 May 2025

Mediterranean eating habits help European children fight genetic obesity risk

A large European cohort study found that adherence to the Mediterranean diet mitigates the impact of genetic risk for obesity in children, especially in early childhood. High consumption of vegetables and legumes was linked to lower obesity risk, regardless of genetic predisposition.

22 May 2025

Gut bacteria and diet found to affect cancer treatment outcomes

A Ludwig Cancer Research study has uncovered a surprising link between diet, intestinal microbes and the efficacy of cancer therapy.

22 May 2025

Cysteine depletion triggers rapid weight loss in mice

Mice genetically engineered to lack the ability to make the amino acid cysteine, and fed a cysteine-free diet, lost 30 percent of their body weight in just one week, a new study shows.

22 May 2025

Blood and urine tests reveal how much ultra-processed food you really eat, study finds

Researchers developed and validated blood and urine metabolite scores that objectively measure ultra-processed food (UPF) intake in adults. These biomarker profiles accurately distinguished between high- and low-UPF diets and may transform nutrition research and public health monitoring.

21 May 2025

Vitamin D supplements help preserve telomere length in aging adults

Results from the VITAL randomized controlled trial reveal that vitamin D supplementation helps maintain telomeres, protective caps at the ends of chromosomes that shorten during aging and are linked to the development of certain diseases.

21 May 2025

Eating garlic, berries, and tea may support younger, healthier cells

Higher intake of methyl adaptogen foods, such as turmeric, green tea, and berries, was associated with reduced epigenetic age in middle-aged men, according to a secondary analysis of the MDLS trial. These findings support the potential role of specific dietary polyphenols in modulating biological aging, though further research in larger and more diverse populations is needed.

21 May 2025

Microplastics in ultra-processed foods may fuel mental health risks, experts warn

New research highlights a possible link between microplastics in ultra-processed foods and rising rates of depression, anxiety, and sleep problems. Experts call for urgent investigation as microplastic accumulation in the human brain increases alongside ultra-processed food intake.

21 May 2025

Trump won’t force Medicaid to cover GLP-1S for obesity. A few states are doing it anyway.

When Page Campbell's doctor recommended she try an injectable prescription drug called Wegovy to lose weight before scheduling bariatric surgery, she readily agreed.

21 May 2025

Longer breastfeeding boosts brain growth and thinking skills in teens, study shows

Longer breastfeeding duration is associated with greater cortical thickness, surface area, and improved fluid cognition in adolescents. These brain structures and cognitive benefits remain stable over two years and support current recommendations for extended breastfeeding.

20 May 2025

Gut bacteria and genes jointly shape obesity risk, review reveals hidden links

Researchers examined the heritability of body mass index (BMI), highlighting that genetics and the gut microbiome both play major roles in obesity risk. The review emphasizes that maternal microbiome transmission and family environment may help explain “missing heritability” beyond known genetic factors.

20 May 2025

Eating kombu daily enhances gut health and heart markers in men

A 12-week randomized trial found that daily intake of boiled kombu (Laminaria japonica) powder reduced body fat and raised adiponectin in Japanese men, while improving blood pressure and gut microbiota in both sexes. No significant effects were seen in women for body fat reduction or adiponectin.

20 May 2025

NIH researchers develop poly-metabolite score to measure ultra-processed food intake

For the first time, researchers at the National Institutes of Health (NIH) identified patterns of metabolites in blood and urine that can be used as an objective measure of an individual's consumption of energy from ultra-processed foods.

20 May 2025

WHO honors four countries for successful trans fat elimination efforts

The World Health Organization (WHO) has recognized four countries – the Republic of Austria, the Kingdom of Norway, the Sultanate of Oman and the Republic of Singapore – for their exemplary efforts in eliminating industrially produced trans fats from their food supplies.

20 May 2025

This news might ruin your appetite — and summer

It's a marvel of food technology: ice cream that resists melting.

20 May 2025

US withdrawal from global health bodies threatens millions with hunger and disease

A new Perspective in The American Journal of Clinical Nutrition warns of catastrophic global nutrition and health impacts if the US withdraws from the WHO and dismantles USAID. The authors urge urgent policy reversal and call for collaborative global action to prevent widespread humanitarian crises.

19 May 2025

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Diet & Nutrition

Overview

Feature Articles

What is a DNA Diet?

Can You Eat Too Much Fruit?

The Vegan Diet, Ethos, Affects and Advice

What are the Health Benefits of a Vegan Diet?

Low Calorie and Very Low Calorie Diets

Diabetic Diet

DASH Diet for High Blood Pressure

High Protein Diet

Caveman or Palaeolithic Diet

Diet for Obese Children and Teenagers

Diet for Overweight and Obese Pregnant Women

Vegetarian Diets for Weight Loss

Fad Diet Examples and Efficacy

FODMAP Research

Calorie and Macro Counting

Fast 5:2 Diet

Fast 5:2 Diet Evidence

The Importance of Dietary Fiber

Nutritional Needs of Young Children (Age 5-10)

How Fast Food Affects Children's Health

What is the 5:2 Diet?

The 5:2 Diet Health Benefits

Military Diet: Health Risks

What is the Military Diet?

Magnesium in the Diet and Body

What to Eat on the Military Diet

What is the BRAT Diet?

Does Red Meat Shorten Lifespan?

Benefits of Nut Consumption During Pregnancy

The Health Benefits of Walnuts

The Detrimental Effects of Ultra-processed Foods​

Are Low Carbohydrate Diets Good for Type 2 Diabetes?

Can You Be Vegan and an Athlete

Dukan Diet: Pros and Cons

New Atkins Diet: Pros and Cons

Cambridge Diet: Pros and Cons

Paleo vs. Keto Diets

South Beach and Low-GI Diets

Are Artificial Food Flavors and Colorings Harmful?

Food Allergies Explained

False Alarm Hypothesis of Food Allergy

Can Food Allergies Ever be Psychological?

Food Intolerance

Causes of Food Intolerance

Is Food Packaging Harmful to Health?

Macrominerals and Trace Minerals in the Diet

What is Clean Eating?

Nutritional / Dietary Supplement

Diet Supplements and Liver Problems

Butter versus Margarine: Which is Healthier?

Coconut Oil: Health Benefits

Should We Eat Polished Rice?

Papaya: Health Benefits

Ginger: Health Benefits

Canola Oil: Is it Healthy?

Differences Between Natural Whole Fruit and Natural Fruit Juice

Genetic Factors Impacting Nutritional Requirement

Foods that Reduce Oxidative Stress and Prevent Cancer

Health Benefits of Quinoa

Healthy High Fat Alternatives to Avocado

Health Benefits of Cinnamon

How Many Calories Should You Eat Per Day?

Natural Protein Sources

Natural Sources of Vitamin D and Calcium

Organic Food Health Benefits

Recombinant Bovine Growth Hormones (rBGH) in Food

Is Palm Oil Good or Bad in Diet?

Sources of Dietary Fiber

Does Drinking 100% Fruit Juice Put on Weight?

The Health Benefits of Cilantro (Coriander)

What are Nutraceuticals?

Nutraceutical Industry

Nutraceutical Regulation

Do NAD Boosters Help You to Live Longer?

How Important Is Breakfast for Overall Health?

What is Personalized Nutrition?

What is the Viking Diet?

The Detrimental Effects of Ultra-processed Foods