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.

What Happens to the Body When we Diet?

The body starts to respond to healthy dietary changes as soon as they are made. This can be advantageous, because a diet can then eventually reduce the risk of obesity, diabetes and heart disease, as well as improve a person’s overall sense of well-being.

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

Better sleep, BMI, and glucose control lower female infertility odds

A new study using NHANES data found that higher Life’s Crucial 9 (LC9) scores, reflecting better cardiovascular and mental health, were linked to lower odds of female infertility. However, adding depression to the LE8 framework did not significantly improve its predictive value.

29 Apr 2025

Disrupted body clocks raise risk of early death, study finds

A large cohort study from China and the U.S. shows that Circadian Syndrome (CircS)—a cluster of metabolic and behavioral disruptions—is linked to higher all-cause and cause-specific mortality. The risk increases with the number of CircS components, especially among adults aged 40–60.

29 Apr 2025

Gut bacteria and metabolites reveal depression-linked patterns in older adults

A cross-sectional study of 400 older adults with metabolic syndrome reveals that individuals with depression have distinct gut microbiota and metabolite profiles. Eight bacterial genera and 15 fecal metabolites were significantly associated with depression, suggesting a gut-brain axis link.

29 Apr 2025

Cancer-related fatigue and depression found to limit recreational activities in survivors

Cancer survivors who reported feeling cancer-related fatigue or depression reduced their recreational activities nearly twofold, with females more likely than males to report feeling either cancer-related fatigue or depression, according to a retrospective study presented at the American Association for Cancer Research (AACR) Annual Meeting 2025, held April 25-30.

29 Apr 2025

Perceived stress linked to worsened symptoms in COPD patients

Increased perceived stress may cause worsened respiratory symptoms and decreased quality of life in people with chronic obstructive pulmonary disease (COPD), according to a new study.

29 Apr 2025

How blood iron levels shape the pace of biological aging

Researchers examine the role of blood iron levels in DNA methylation-based measurements of biological aging.

29 Apr 2025

Pecans lower cholesterol and improve diet quality in at-risk adults, study finds

Substituting 57 grams of pecans for usual snacks over 12 weeks improved lipid profiles and diet quality but did not affect vascular function in adults at cardiometabolic risk. A modest weight gain was also observed.

29 Apr 2025

Obesity changes how the gut responds to plant compounds, researchers report

Researchers found that the impact of polyphenols rutin and genistein on the human fecal metabolome varies significantly by body mass index (BMI). Lower BMI individuals showed more diverse metabolic responses, revealing how gut health and obesity could shape polyphenol metabolism.

28 Apr 2025

Processed blueberry bars provide polyphenols as effectively as raw fruit, research reveals

A randomized controlled trial from North Carolina State University found that food processing minimally affects the bioavailability of (poly)phenols from blueberries and blueberry-enriched protein bars. Both processed and raw forms delivered comparable levels of bioavailable phytochemicals.

28 Apr 2025

Study links ultraprocessed foods to higher risk of premature deaths, modeling shows

A study analyzing data from nationally representative dietary surveys and mortality data from eight countries (Australia, Brazil, Canada, Chile, Colombia, Mexico, United Kingdom, and United States) shows that premature deaths attributable to consumption of ultraprocessed foods (UPFs) increase significantly according to their share in individuals' total energy intake.

28 Apr 2025

New blood test can improve heart disease risk prediction

For almost 60 years, measuring cholesterol levels in the blood has been the best way to identify individuals at high risk of cardiovascular disease.

28 Apr 2025

Ultra-processed foods make up nearly half of US grocery purchases, raising public health concerns

A 2025 study of nearly 60,000 US households found that almost half of grocery purchases were ultra-processed foods (UPFs), with major disparities based on income, education, and race. Non-Hispanic white households led in UPF purchases, especially in beverages, reversing earlier trends.

28 Apr 2025

Prioritizing diabetes prevention through education and lifestyle changes

With American Diabetes Alert Day approaching on March 25, 2025, the Molly Diabetes Education and Management Center for Adults and Children urges individuals, especially those struggling with prediabetes and obesity, to prioritize diabetes prevention and treatment through education, nutritional counseling, and exercise.

25 Apr 2025

Traditional African diet can protect against chronic diseases in just two weeks

A traditional African diet rich in vegetables, fibre, and fermented foods can reverse inflammation and protect against chronic diseases in just two weeks, while Western diets exacerbate these conditions, researchers say.

25 Apr 2025

Study finds early signs of dry eye in most young adults

Researchers at Aston University have called for more advice to be given to young people about preventing dry eye disease, after a study carried out in conjunction with Oslo University Hospital and Sørlandet Hospital Trust in Norway found that 90% of participants had at least one sign of the condition in their eyes.

25 Apr 2025

Smoking, drinking and inactivity associated with declines in health in people as young as 36

Bad habits such as smoking, heavy drinking and lack of exercise must be tackled as early as possible to boost the odds of a happy and healthy old age.

24 Apr 2025

What’s behind Gen Z’s skepticism about Ozempic and Wegovy

A U.S. study of over 500 youth aged 14–24 found high awareness but widespread hesitation about using semaglutide for weight loss. Concerns focused on safety, social stigma, and a preference for lifestyle changes like diet and exercise.

24 Apr 2025

Heart failure patients benefit from medically tailored meals after discharge

A new study, published in BMC Nutrition, demonstrates that providing medically tailored meals (MTM) to patients with heart failure (HF) and malnutrition risk following hospital discharge significantly improves their nutritional status and keeps hospital readmission rates well below local and national averages.

24 Apr 2025

Chitosan clears microplastics from the gut in rats within days

A study in rats found that ingesting chitosan, a dietary fiber from shells, significantly increased the fecal excretion rate and decreased the gut retention time of polyethylene microplastics. This suggests chitosan could potentially help mitigate microplastic accumulation in the digestive system.

24 Apr 2025

Global immunization progress threatened by misinformation and funding cuts

Immunization efforts are under growing threat as misinformation, population growth, humanitarian crises and funding cuts jeopardize progress and leave millions of children, adolescents and adults at risk, warn WHO, UNICEF, and Gavi during World Immunization Week, 24–30 April.

24 Apr 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