Raw milk, long debated as healthier and nutritious than pasteurized milk by enthusiasts but strongly cautioned against by health practitioners, is now a hot topic in health and wellness circles with the increasing popularity of "natural" and "unprocessed" foods. The dangers surrounding raw milk have been brought to the forefront with the outbreak of H5N1 bird flu, highlighting the risk of contamination in raw milk supplies. All about raw milk, its risks, and the latest science.

What Is Raw Milk?

Raw milk is unpasteurized milk taken directly from cows, goats, or other similar animals. Unpasteurized milk does not go through the heat treatment process meant to destroy harmful pathogens and bacteria. Raw milk proponents say that pasteurization kills nutrients and enzymes. And that might be one false claim after another, as science continues to disprove it.

According to Dr. Meghan Davis of Johns Hopkins Bloomberg School of Public Health, pasteurization does not significantly alter the concentration of minerals or the quality of proteins in milk. In fact, it's a critical step to ensure food safety, particularly for animal-derived products prone to contamination.

Wellness influencers have in recent times advocated for raw milk as the "clean" and "natural" alternative to commercial milk distributed in stores, using claims from improved digestion to the stimulation of the immune system. However, these claims are not scientifically proven. Although raw milk contains antibodies, the amounts are too small to be worth anything for health.

Health Risks of Drinking Raw Milk

Raw milk consumption poses immense risks. It can become contaminated in two major ways:

1. Internal Contamination: Pathogens such as E. coli, Salmonella, and Campylobacter can seep into milk through infected animals.

2. External Contamination: Polluted water, dirt, manure, and contaminated equipment introduce harmful microorganisms.

The infections acquired from raw milk include diarrhea, stomach cramps, nausea, and fever, and severe effects can be experienced by infants, the elderly, pregnant women, and even immunocompromised people. Some other rare but serious diseases like hemolytic uremic syndrome, which may bring about renal failure or stroke, have also been associated with raw milk.

Bird Flu Impact on Raw Milk Safety

Raw milk has become a focal point of the latest bird flu outbreak as preliminary genetic analysis indicates the H5N1 virus, which causes avian flu, may have begun infecting cattle earlier than thought. And the CDC says viral particles have been found in raw milk, which adds one more risk to consuming unpasteurized dairy.

A notable case was with sick and dead cats on a Texas dairy farm that resulted from ingesting unpasteurized milk from infected cows. This presents how unpasteurized milk can be a vector for transmitting diseases.

Legal Status of Unpasteurized Milk

To reduce the risk, the FDA prohibited the interstate sale of unpasteurized milk in the United States. Different states, however, have their respective regulations on this matter:

- 20 states completely banned the sale of unpasteurized milk.

- 30 states allow raw milk sales under specified conditions.

Although these laws exist for protection of public health, many consumers are not even aware of the dangers associated with their consumption.

Why Pasteurization Is Important

Pasteurization destroys harmful bacteria without affecting the nutritional content of milk. Several studies in *Nutrition Today* report that pasteurization does not change the nutrient profile of milk. Pasteurized milk is free from pathogens and, therefore, also a safer alternative for all consumers, especially vulnerable ones.

Myths About Raw Milk Products

It's not just raw milk that's hazardous. Cheese, yogurt, and ice cream with unpasteurized milk carry the same dangers. To anyone tempted by the supposed health value of raw dairy, experts say in one voice: stick to pasteurized, and avoid illnesses like bird flu or salmonella infection.

Should You Drink Raw Milk?

Health organizations, including the FDA, CDC, and American Academy of Pediatrics, strongly advise against consuming raw milk. Beyond the personal health risks, drinking raw milk can also endanger others by increasing the spread of harmful bacteria and viruses.

The emergence of H5N1 in cattle and its link to raw milk calls the world to wake up to better preparedness. Like COVID-19, bird flu has demonstrated vulnerabilities in our food safety systems. The presence of avian flu in raw milk underscores the imperative for strict rules, public education, and investments in the prevention of these diseases.

Could this outbreak push governments and health organizations to step up surveillance and vaccination efforts against zoonotic diseases? The lessons learned from COVID-19 suggest a coordinated approach is essential to prevent future pandemics.

On the other hand, raw milk is far riskier and has far fewer benefits than its apparent healthy, "natural" choice. From bacterial contamination to the allowance of viruses like H5N1, there is evidence that is clear: pasteurization cannot be wished away. As we face new health challenges, it will be science over trends that safeguard public health.

piece of sugar-free chewing gum may seem like a healthier choice. But new research is putting one of its most excessively used ingredients under the microscope: xylitol. It is a sugar alcohol used in sugar-free chewing gum, mints, toothpaste, jam, yoghurt, and other products.

The sugar-free sweetener has been linked with a significantly higher risk of heart attack, stroke and cardiovascular death in a large new study.

Researchers found that people with the highest blood levels of xylitol had a 57% higher risk of a major cardiovascular event over six years than those with the lowest levels.

The findings were presented at the European Society of Cardiology (ESC) Congress 2026. It was based on 17,710 people from two long-running population studies. The researchers also found an 18% higher risk over 30 years in the European group.

But before you throw every packet of sugar-free gum into the bin, remember that the study only found an association, not definitive proof that consuming xylitol directly increases the risk of heart attacks or strokes.

What Is Xylitol?

Xylitol is a sugar alcohol, also known as a polyol. It occurs naturally in tiny amounts in some foods and is also produced by the human body during glucose metabolism.

Xylitol tastes almost the same as sugar but contains fewer calories, and it does not promote tooth decay in the same way ordinary sugar does. That's why it has become a popular ingredient in sugar-free gum, mints, and other oral-care products.

According to the ESC, the concerning part is that commercially added amounts of xylitol can be more than 1,000 times higher than the tiny quantities naturally present in foods and the body.

Also read: FSSAI Proposes Red Front-Of-Pack Warning Labels On Junk Food: How Will This Benefit Consumers’ Health?

How Was Study Conducted?

Researchers divided participants according to their blood xylitol levels and compared the highest quarter with the lowest quarter.

In the Canadian cohort, those with the highest levels had a 57% greater risk of major adverse cardiovascular events over six years after adjusting age, sex, smoking, diabetes, blood pressure and cholesterol.

In the European cohort, the association remained visible over a much longer period, with an 18% higher risk over 30 years.

One of the most important findings is that 57% does not mean that eating a piece of xylitol gum makes your personal risk of a heart attack jump by 57%. The researchers measured xylitol circulating in the blood, rather than asking participants how much xylitol-containing food they consumed.

Also read: Everest Hing Sale Prohibited By FSSAI; 3 Other Masalas Flagged For Violations

Xylitol May Enable The Formation Of Blood Clots

The researchers had previously investigated how xylitol might influence blood clotting. Their laboratory work suggested that xylitol can make platelets more reactive, equipping them to form clots.

Dr Marco Witkowski of Charité University Hospital in Berlin, who presented the research, said, "Xylitol can enhance the ability of platelets to form clots."

When a blood clot blocks an artery supplying the heart, it can trigger a heart attack. If a clot blocks blood flow to part of the brain, it can cause an ischaemic stroke.

Witkowski added, "Our long-term findings highlight how little we know about the cardiovascular safety of xylitol."

The study does not establish that ordinary consumption of products containing xylitol causes heart attacks or strokes, and it does not mean that replacing sugar with xylitol is automatically dangerous.

Food choices play an important role in overall health, and reproductive health is no exception. Eating junk or highly processed foods occasionally is unlikely to directly cause infertility. However, regularly consuming foods that are high in added sugar, unhealthy fats, salt and refined carbohydrates, while being low in essential nutrients, may affect the body in several ways.

Poor dietary patterns can contribute to weight gain, insulin resistance, inflammation and hormonal changes, all of which may influence fertility. Both men and women can be affected, although the impact may differ depending on individual health, age and other factors.

The Link Between Diet, Weight And Hormonal Health

It can affect healthy body weight: Regular intake of calorie-dense foods such as fried snacks, fast food, sugary beverages and packaged foods can contribute to weight gain. Being significantly overweight or underweight can affect reproductive hormones. In women, excess weight may interfere with ovulation and menstrual regularity, while in men it may affect testosterone levels and sperm production.

It may influence blood sugar and insulin: A diet high in refined carbohydrates and added sugars can contribute to insulin resistance, particularly when combined with excess weight and low physical activity. Insulin resistance can worsen hormonal imbalance and may contribute to irregular ovulation in women, especially those with conditions such as PMOS (earlier known as PCOS).

Nutrient deficiencies can matter: Highly processed foods may provide calories without supplying enough important nutrients. Fertility and reproductive health require adequate amounts of proteins, healthy fats, vitamins and minerals such as folate, iron, zinc, selenium and vitamin D. A diet lacking variety may therefore not provide the nutritional support needed for healthy reproductive function.

Also read: For The First Time, Study Links 'One Sugary Drink A Day' To Higher Stomach Cancer Risk

Why Sperm Health And Overall Diet Matter Too

Sperm health can also be affected: In men, a consistently poor-quality diet may be associated with poorer sperm concentration, movement and quality. Diets rich in fruits, vegetables, whole grains, nuts, seeds, legumes, fish and other nutrient-rich foods are generally considered more supportive of reproductive health.

Inflammation and oxidative stress may play a role: Frequent consumption of highly processed foods, particularly those rich in unhealthy fats and added sugars, may contribute to inflammation and oxidative stress. These processes can affect overall health and may potentially influence egg and sperm quality.

Also read: Can What You Eat Before 9 AM Shape Your Blood Sugar For The Rest Of The Day?

Small Dietary Changes Can Support Reproductive Health

Small changes can make a difference: Improving fertility-supportive nutrition does not mean completely avoiding favourite foods. The focus should be on balance. Fresh fruits and vegetables, whole grains, pulses, nuts, seeds, dairy or suitable alternatives and adequate protein should form a regular part of the diet. Processed snacks, sugary drinks and deep-fried foods can be limited rather than consumed frequently.

Lifestyle matters along with diet: Diet is only one part of fertility. Regular physical activity, adequate sleep, stress management, avoiding smoking and excessive alcohol, and maintaining a healthy weight are also important. Existing conditions such as diabetes, thyroid disorders, or PMOS (earlier known as PCOS) should be properly managed.

Regular consumption of junk and highly processed foods does not automatically mean that a person will become infertile. However, when such foods form a large part of the daily diet, they may contribute to obesity, metabolic problems, nutritional deficiencies and hormonal changes that can affect reproductive health.

A balanced and nutrient-rich diet, combined with healthy lifestyle habits and timely management of medical conditions, can help create a healthier environment for fertility. If a couple is having difficulty conceiving, dietary changes should not replace a proper medical evaluation.

Drinking a sugary beverage every day may be linked to a significantly higher risk of stomach cancer, according to a new study that researchers described as the first of its kind.

The study found that people who consumed at least one sugar-sweetened beverage everyday had 2.45 times the risk of developing gastric cancer compared with those who consumed fewer drinks in a month.

The findings were based on data obtained from 112,284 participants enrolled in the Nurses' Health Study and Health Professionals Follow-Up Study. Over the follow-up period, 278 participants developed gastric cancer.

Researchers from Mass General Brigham Cancer Institute and other institutions published their findings in Gastro Hep Advances.

Daily Sugary Drinks Linked To Higher Stomach Cancer Risk

The researchers examined participants' intake of sugar-sweetened beverages, including regular soft drinks, punch, lemonade and sports drinks.

After accounting for other potential risk factors, people who drank at least one serving of these beverages every day had a 2.45-fold higher risk of gastric cancer than those who consumed them less than once a month.

The association was even stronger among women in the Nurses' Health Study. Women who consumed more than one sugary drink a day had a 3.04-fold higher risk of stomach cancer compared with women who rarely consumed them. The study did not find a similar association between artificially sweetened beverages and gastric cancer.

Also read: How Brachytherapy Is Personalising Radiation Therapy For Breast Cancer

Researchers Think Sugar And Fructose Are Possible Factors

The researchers also looked at participants' intake of fructose, a type of sugar commonly found in sweetened beverages. Higher fructose consumption was associated with a greater incidence of gastric cancer, although the study could not establish exactly why.

Excessive sugar consumption can contribute to several metabolic changes, including weight gain and inflammation, which are being investigated as possible pathways connecting sugary drinks with cancer. However, the researchers stressed that the biological mechanism behind the association is still not established.

Senior author Andrew T. Chan, a gastroenterologist and epidemiologist at Mass General Brigham, said the study addresses an area that has received relatively little attention.

“This is the first study to demonstrate an association between sugar-sweetened beverage intake and gastric cancer in a U.S. population.” Chan noted that stomach cancer remains a major global health burden and is the fifth leading cause of cancer death worldwide.

Also read: Moderna and Merck’s Custom-Made mRNA Cancer Vaccine Shows Promise In Late-Stage Melanoma Trial

H. Pylori Infection Maybe A Common Denominator

The researchers also considered Helicobacter pylori, or H. pylori, a bacterium and one of the most common risk factors for stomach cancer. Among a smaller group of 940 participants for whom information about H. pylori was available, more than one-third showed evidence of infection. However, researchers did not find a clear relationship between sugary-drink consumption and H. pylori infection.

This suggests that the association between sugary beverages and stomach cancer may not simply be explained by sugary drinks increasing the likelihood of H. pylori infection. More research is needed to understand the connection.

Study Does Not Prove Sugary Drinks Cause Cancer

The study was observational, meaning it identified an association but could not establish that consuming sugary drinks directly causes stomach cancer.

Researchers also pointed to several limitations, including limited information about H. pylori infection and family history of stomach cancer. Most participants were also white, which could limit how broadly the findings can be applied to other populations.