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Category: cancer

Published on Leave a comment on Exercise Beneficial In Cancer

Exercise helps fight cancer. Wow! What a headline. But is it true?

Researchers studied exercise, and its effect on gut microbes and the molecules they produce in response to the exercise. They found that certain gut microbes produce a metabolite (formate) that is increased with exercise and which boosts the potency of CD8 T cells in the immune system – which are key to fighting cancer. The initial tests were done in mice, but then the researchers took their results and applied them to humans with melanoma.

They found that in humans with melanoma, high levels of formate had longer progression-free survival (they live with the cancer, but it doesn't get worse). This is big news! Of course, further studies are ongoing.

Bottom line: Exercise is beneficial for all sorts of reasons, but one may be its effects on cancer. Studies find that exercise is known to help prevent cancer and suppress the growth of existing tumors.

From New Scientist: Exercise helps fight cancer – and we may finally know why

Exercise seems to help prevent cancer and reduce the growth of tumours, and that protective effect may be due to the way working out changes the gut microbiome. ...continue reading "Exercise Beneficial In Cancer"

Published on Leave a comment on Pesticide Industry Doesn’t Want To Disclose Pesticide Harms Or Allow Lawsuits

The following news should concern everyone. So far 2 states (North Dakota and Georgia) have passed laws protecting pesticide companies from lawsuits, referred to as "immunity from litigation".

What this means is that if a harm is not on the pesticide label, then people can't sue about other not mentioned or hidden harms. This is even if the companies deliberately hid harms that occur to people using or exposed to the products - referred to as "failure to warn".

Yikes! What is on the pesticide labels (and registered with the EPA) typically are short-term harms from acute exposure (that is, short-term intense exposure), such as rashes, eye irritation, headaches. Potential long-term health harms from chronic or multiple exposures, such as cancer (e.g., non-Hodgkin's lymphoma), birth defects, fertility issues, neurological harms (e.g., Parkinson's disease) are generally not on the labels.

By the way, the harms that are listed on labels are what the pesticide companies themselves tell the EPA. The EPA does NOT conduct its own research. All of this is a strategy by pesticide companies to avoid having to pay out settlements. They want to deny victims (people harmed by pesticides) access to courts to hold corporations accountable for harms caused by their products.

What makes this legislation especially frightening is that "immunity from legislation" sets a dangerous precedent for claims against any manufacturers of products with toxic ingredients. With the passage of this legislation, do you think pesticide companies will feel any duty to reveal harms from their products? Hah!

This legislation is moving forward in a number of other states (e.g., North Carolina Iowa, Missouri). If it's in your state, do your best to oppose and stop legislation that will shield pesticide manufacturers from being sued by people who were harmed by their products. Ordinary people and consumer groups do NOT support this legislation. Of course not.

The following are several articles that discuss this issue, including opinions of farmers (they want to be able to sue manufacturers of pesticides, if harmed).

From Beyond Pesticides: Industry Effort to Quash Lawsuits for Failure to Disclose Hazards Defeated in 9 States, Eyes on North Carolina

Hub for status of failure-to-warn, from Beyond Pesticides: Failure-to-Warn and status details for each state: Failure-to-warn resources and bills

Article describing views of farmers injured by pesticides from Investigate Midwest: Pesticide manufacturers ask lawmakers for immunity from lawsuits by sick farmers 

Another article (from Feb. 2025) describing views of farmers: Farmers ‘very worried’ as US pesticide firms push to bar cancer diagnoses lawsuits

Published on Leave a comment on Dairy Products and A Lower Risk of Colorectal Cancer

Many people (even health professionals) are still under the impression that dairy products made from milk are unhealthy. NOT TRUE. Consuming dairy products, especially whole milk products, is associated with a number of health benefits.

Recent research adds to the growing body of research finding that higher intake of dairy products is associated with a lower risk of colorectal cancer (commonly referred to as colon cancer). One big review found a 20% decrease in colon cancer with higher dairy product consumption, and an 18% decrease in colon cancer specifically with higher milk consumption.

The researchers discussed studies that found that with each 400 g (about 1 3/4 cups) of dairy foods that people consumed daily, there was a 13% reduced risk of colorectal cancer.

It's more than the calcium found in the dairy products (there is research already finding that calcium in foods is associated with lower risk of colorectal cancer). And it's more than dairy products that are fermented (e.g., yogurts). It's high fat milk products (whole milk) that have the highest association. But currently it's unclear why.

Excerpts from Medscape: Does Higher Dairy Intake Reduce CRC Risk?

Two recent studies have added to the growing body of research suggesting consuming more dairy reduces a person’s risk of getting colorectal cancer. ...continue reading "Dairy Products and A Lower Risk of Colorectal Cancer"

Published on Leave a comment on Walnuts, Gut Microbes, and Lower Levels of Inflammation
Credit: Wikipedia

Nowadays, the scientific view is to eat some nuts frequently for all sorts of health benefits. Recently, a study found that eating walnuts helps to lowers systemic inflammation (inflammation throughout the body), and in doing so reduces colon cancer risk.

The researchers said that the beneficial health effects are from ellagitannins, plant-derived polyphenol compounds, found in walnuts and pecans. Gut microbes convert the ellagitannins into anti-inflammatory urolithins.

Ellagitannins are also found in pomegranates, some berries (raspberries, blackberries, strawberries, cloudberries), and muscadine grapes. They are mainly metabolized by microbes in the colon. The consumption of foods containing ellagitannins has been associated with positive effects on many diseases (e.g., cardiovascular diseases, neurodegenerative syndromes, and cancer). Ellagitannins are antioxidant, anti-inflammatory, and cancer preventive.

From Medical Xpress: Walnut consumption curbs inflammation and may reduce colon cancer risk, clinical trial finds

There are new findings out about the benefits of eating walnuts. Results from a UConn School of Medicine clinical trial on the cover of the April edition of the journal Cancer Prevention Research show that walnuts improve systemic inflammation while also reducing colon cancer risk. ...continue reading "Walnuts, Gut Microbes, and Lower Levels of Inflammation"

Published on Leave a comment on Drinking Alcohol Is Beneficial For Cholesterol Levels
Credit: Wikipedia

The debate over alcohol continues. While drinking alcohol in large amounts is known to cause health problems (e.g., increases risk of cancer), drinking small or moderate amounts is still debated. Some studies say any amount causes harm, but other studies say "not so fast" - moderate drinking is OK and even has benefits (e.g., lower risk of heart attacks and strokes), especially when drunk with a meal.

A recent large study found a benefit to drinking moderate amounts - it is good for cholesterol levels. When nondrinkers started drinking moderately over the course of the study, it raised "good cholesterol" levels and lowered "bad cholesterol" levels. And surprisingly, when moderate drinkers stopped drinking, "bad cholesterol" levels went up and "good cholesterol" levels went down.

"Good cholesterol" is high-density lipoprotein cholesterol or HDL, and "bad cholesterol" is low-density lipoprotein cholesterol or LDL. Changes in cholesterol levels were associated with how much a person started drinking - the more one drank, the better the cholesterol levels. Improvements were better than taking medications! Results with all types of alcohol (wine, beer, spirits) were the same.

From Ars Technica: Large study shows drinking alcohol is good for your cholesterol levels

Drinking alcohol is bad in many ways; raising a glass can raise your risks of various health problems, such as accidental injuries, liver diseases, high blood pressure, and several types of cancers. But, it's not all bad—in fact, it's surprisingly good for your cholesterol levels, according to a study published today in JAMA Network Open. ...continue reading "Drinking Alcohol Is Beneficial For Cholesterol Levels"

Published on Leave a comment on Exposures to Pesticides and Childhood Cancer Risk

The US is awash in pesticides - whether used on farms, in homes, on lawns, right-of-ways, on flea collars, etc., etc. They are used for specific reasons (e.g., to kill specific pests or weeds), but they also cause harms. People have more exposure to pesticides than they realize, and this results in health harms, especially to children and during pregnancy.

For example, people are exposed when there is drifting of pesticides to non-target areas when applied, or there is contamination of drinking water, or from the pesticide residues in the foods we eat, touching dogs wearing flea collars, or when children play on treated lawns.

A large study found that exposure to multiple pesticides results in an increased risk of childhood cancers - brain cancer by 36%, leukemia rates by 23%, and overall pediatric cancer rates by 30%. The study was done in Nebraska, the state with the second highest cancer rates. Many scientists, and also researchers of the study, believe this is from extensive use of multiple pesticides on crops.

Unfortunately, the government only looks at exposure to one chemical at a time - not the mixtures we are exposed to on a daily basis. Also, the most toxic pesticides (dicamba, paraquat, glyphosate) are more regulated or banned in Europe, but not in the US. (Remember: $$$ first in the US).

Simple steps you can do to lower your pesticide exposure: 1) Eat as many organic foods as possible. Pesticide levels in the body will rapidly go down. 2) Use non-toxic Integrated Pest Management (IPM) or organic methods for pest problems. 3) Don't use pesticides on the grounds where you live. View lawns as having wildflowers (bee habitats!) and not weeds. 4) Take your shoes off at the door (so you don't track in pesticides). 5) Use some sort of water filter for drinking water if you suspect that there are pesticides in your water.

From The Guardian: Exposure to combination of pesticides increases childhood cancer risk – study

Exposure to multiple pesticides significantly increases the risk of childhood cancers compared with exposures to just one pesticide, first-of-its-kind research finds, raising new fears that children are more at risk to the substances’ harmful effects than previously thought. ...continue reading "Exposures to Pesticides and Childhood Cancer Risk"

Published on Leave a comment on Dairy Foods Benefit Our Gut Microbes

It's good to eat and drink dairy foods! Consuming dairy foods is beneficial for the gut microbiome, but each dairy food - whether milk, cheese, or yogurt - appears to have  different effects on the composition of the gut microbiome (the community of bacteria, viruses, fungi).

A recent small study found that consuming higher amounts of dairy foods is beneficial for the gut microbiome, and resulted in a greater variety of bacterial species (this is considered good for health). There was more abundance of the beneficial bacteria Bifidobacterium, a bacteria associated with digestive health and immune support.

Consumption of milk was especially beneficial in boosting a variety of beneficial bacteria (Faecalibacterium) known for their anti-inflammatory properties.

Higher amounts of total dairy foods consumed was associated with lower levels of Bacteroides, which are linked to inflammatory conditions and colorectal cancer.

Excerpts from news-medical.net: Milk boosts gut-friendly bacteria while cheese alters microbiome balance, study reveals

In a recent study published in the journal Nutrients, researchers in the United States explored the influence of dairy consumption on colonic mucosa-associated gut microbiota. By investigating specific bacterial composition changes linked to dairy intake, they highlighted its implications for individual and public health. ...continue reading "Dairy Foods Benefit Our Gut Microbes"

Published on Leave a comment on Eating Yogurt Associated With A Lower Risk For Some Colorectal Cancers
Yogurt Credit: Wikipedia

Some foods are considered good for the gut microbiome. Yogurt, which is loaded with beneficial bacteria, is one of them. A recent study found that eating yogurt two or more times a week for long periods of time (years!) is associated with a lower risk for several types of colorectal cancer.

However, it must be noted that the study found that eating yogurt, whether frequently or not, did NOT have an association with overall colorectal cancer incidence. It was just with colon cancer that had Bifidobacterium-positive tumors (31% of colon cancers in this study). Persons eating 2 or more yogurts per week had a 20% lower incidence of Bifidobacterium-positive tumors.

Yogurt contains Bifidobacterium bacteria, a bacteria that is considered tumor-suppressive. By the way, all fermented dairy products (e.g., kefir, buttermilk, cheese) have long been viewed as beneficial to health, and they all contain a variety of microbes, including Lactobacillus species.

From Science Daily: Long-term yogurt consumption tied to decreased incidence of certain types of colorectal cancer

Yogurt, which contains live strains of bacteria, is thought to protect against many types of diseases, with some reports indicating it could reduce risk of colorectal cancer. ...continue reading "Eating Yogurt Associated With A Lower Risk For Some Colorectal Cancers"

Published on Leave a comment on Hair Stylists Are Exposed to High Levels of Harmful Airborne Chemicals
Hair salon Credit: Wikipedia

Hairdressers are exposed to lots of harmful airborne chemicals in the products they and others use in hair salons. And it's every day they work, all day. A recent study found that the chemical exposure is especially high for hair stylists serving Black and Latina clients.

The airborne chemicals from the products hairdressers use (e.g., straighteners, relaxers, chemicals in permanents, hair dyes, sprays) are called volatile organic compounds (VOCs). They are air pollutants. These chemicals can pose health risks, such as reproductive effects, respiratory problems, cardiovascular effects, cancer, and skin and respiratory irritation. One common VOC hairdressers are exposed to is formaldehyde.

The study found that the level of VOCs in the air was much, much lower in office spaces not connected to the hair salons. Of course.

From Medical Xpress: Hairstylists serving Black and Latina clients exposed to high concentrations of airborne toxins

Hairstylists, especially those providing services to Black and Latina women, are exposed to high concentrations of harmful airborne chemicals in their workplace, a team of Johns Hopkins researchers has found.

The study, published in the Journal of Environmental Exposure Assessment, is the first to report indoor air concentrations of several volatile organic compounds or VOCs in U.S. hair salons serving this group of women. This builds on previous Johns Hopkins research that found Black and Hispanic hairdressers had higher levels of chemicals from hair relaxers, dyes, and other salon products in their bodies compared to office workers but did not specifically measure air concentrations of the chemicals. ...continue reading "Hair Stylists Are Exposed to High Levels of Harmful Airborne Chemicals"

Published on Leave a comment on Another Reason to Avoid High-Fructose Corn Syrup
Soda Credit: Wikipedia

More worrisome news about high-fructose corn syrup. Researchers found that high fructose corn syrup actually speeds up and fuels the growth of cancer tumors in animals who already have cancer.

While this study was done in mice (with either breast cancer, melanoma, or cervical cancer), it is actually a scary finding because so many foods that Americans ingest daily contain high-fructose corn syrup. It is a sugar derived from corn starch and found in many foods: baked goods, soda, fast food, cereals, ice cream, etc. If you see it in an ingredient list, it means it is an ultra-processed food.

Bottom line: Read food ingredient lists and try to avoid eating foods with high-fructose corn syrup.

Excerpts from US Right To Know: High-fructose corn syrup fuels tumor growth in animals with cancer, a new study shows

High-fructose corn syrup, a sweetener commonly used in soda and ultra-processed foods, accelerates cancer tumor growth via the liver, according to research published last week [Dec. 4, 2024] in Nature.

High-fructose corn syrup (HFCS) is a sugar derived from corn starch. High fructose intake has been shown to contribute to the development of non-alcoholic fatty liver disease (NAFLD) and obesity, both of which are associated with systemic inflammation and altered lipid metabolism (the way the body processes fats). It has also been linked to diabetes, heart disease, and colorectal cancer. ...continue reading "Another Reason to Avoid High-Fructose Corn Syrup"