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

Why your baby’s first steps may be written in their DNA

Researchers identified 11 genetic loci linked to the age at which infants start walking, revealing that this milestone is influenced by thousands of common genetic variants. These genetic factors also correlate with brain development, cognitive traits, and neurodevelopmental conditions like ADHD.

8 May 2025

Eating avocado in pregnancy cuts infant food allergy risk by nearly half

Pregnant women who ate avocado were significantly less likely to have children with food allergies at 12 months of age. The association held even after adjusting for maternal diet quality, lifestyle, and perinatal factors in a large Finnish cohort.

8 May 2025

Sleep deprivation increases inflammation linked to heart disease risk

Even a few nights with insufficient sleep increases promote molecular mechanisms linked to a greater risk of heart problems.

8 May 2025

Meet the Florida group chipping away at public benefits one state at a time

As an Arizona bill to block people from using government aid to buy soda headed to the governor's desk in April, the nation's top health official joined Arizona lawmakers in the state Capitol to celebrate its passage.

8 May 2025

High intake of ultra processed foods linked to early signs of Parkinson's

People who eat more ultra processed foods like cold breakfast cereal, cookies and hot dogs are more likely to have early signs of Parkinson's disease when compared to those who eat very few ultra processed foods, according to a study published in the May 7, 2025, online in Neurology, the medical journal of the American Academy of Neurology.

7 May 2025

How urine caffeine levels may help detect diabetic eye damage early

Researchers found that higher urinary levels of caffeine and specific metabolites, especially in men, were significantly associated with diabetic retinopathy risk. The cross-sectional study used NHANES 2009–2014 data and highlights potential biomarkers for early detection in diabetic populations.

7 May 2025

Air pollution reshapes children’s nasal microbiome and reduces diversity in winter

A new study from Milan reveals that short-term exposure to air pollutants like black carbon and VOCs significantly alters the nasal microbiota of school-aged children. These changes vary by season, with winter exposure reducing microbial diversity and favoring potentially pathogenic bacteria.

7 May 2025

Canadian study links ultra processed foods to poor health outcomes

A landmark study exploring Canadians' consumption of chips, frozen pizzas, breakfast cereals and other ultra-processed foods typically loaded with fat, sugar and additives has confirmed these foods are directly and significantly linked to poor health outcomes.

7 May 2025

New micropipette allows precise ion delivery to individual brain cells

Researchers at Linköping University have developed a new type of pipette that can deliver ions to individual neurons without affecting the sensitive extracellular milieu.

7 May 2025

Survey shows many U.S. adults know plant-based diets improve health

Half of U.S. adults say they know eating a plant-based diet can improve their health and help prevent chronic diseases, according to a new Physicians Committee for Responsible Medicine/Morning Consult survey.

7 May 2025

Healthy diet in childhood linked to later onset of menstruation

Eating a healthy diet as a child is linked to girls having their first menstrual period at an older age than those who consumed a less healthy diet, according to a new study published today (Wednesday) in Human Reproduction, one of the world's leading reproductive medicine journals.

6 May 2025

Tomato and fruit juice improve quality of life for kids with asthma

Study suggests these antioxidant-rich juices may be a well-tolerated, practical addition to standard childhood asthma management.

6 May 2025

Can your diet slow skin aging? New review reveals what helps and what harms

Scientists reviewed recent studies and found that antioxidant-rich diets help slow skin aging, while high intake of refined sugars and trans fats accelerates it. A balanced, nutrient-dense diet may be a practical way to protect skin health and delay visible signs of aging.

6 May 2025

Low testosterone linked to higher kidney stone risk in men, study finds

A large cross-sectional study in South Korea found that men with low testosterone levels (below 3.33 ng/mL) were significantly more likely to have kidney stones. This association held even after adjusting for age and metabolic risk factors, suggesting testosterone may play a protective role.

6 May 2025

New tool uses eight health metrics to track biological aging

A novel health-assessment tool uses eight metrics derived from a person's physical exam and routine lab tests to characterize biological age.

6 May 2025

Ultra-processed foods increase risk of anxiety and depression, study shows

A large UK Biobank study linked ultra-processed food (UPF) consumption to increased risks of anxiety, depression, substance use disorder, and other mental health outcomes. A metabolomic signature associated with UPF intake partially mediated these relationships, especially in adults under 60.

5 May 2025

A decade of discovery in the science of healthy aging and human longevity

It's notable when a scientific study reaches the decade mark, but when the topic is the healthy aging of people who have lived 10 times as long, it just means there's still a lot more to learn.

5 May 2025

Women face higher depression risk from unhealthy food

A cross-sectional study of over 15,000 adults across multiple countries found that ultra-processed food (UPF) consumption was linked to higher odds of depression, especially in women across all age groups. Healthy dietary patterns were protective in women aged 18–54, but showed no benefit for men.

5 May 2025

TM6SF2 gut-specific knockout aggravates liver lipid accumulation in MASLD mice

Metabolic dysfunction-associated steatotic liver disease (MASLD), is the most common form of chronic liver disease worldwide. This study aimed to explore the role of TM6SF2 in high-fat diet (HFD)-induced MASLD through the gut-liver axis.

5 May 2025

Can your diet affect fertility? Gut-linked dietary score reveals surprising risk pattern

A cross-sectional study of over 3,000 U.S. women found a non-linear link between a gut microbiota-based dietary index (DI-GM) and infertility. Risk decreased with healthier diets but unexpectedly rose beyond a certain threshold score.

4 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