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Category: cancer

Published on Leave a comment on Weed-Killer Glyphosate and Cancer

Remember when back in 2015 the IARC (International Agency for Research on Cancer) said that the pesticide glyphosate (the active ingredient in Roundup) is a probable human carcinogen (cancer causing)? And the American chemical industry and FDA pooh-poohed that? Well, there have been a number of studies since then finding that yes, glyphosate results in tumors and other health harms, and is cancer causing (carcinogenic).

Glyphosate is a commonly used herbicide (weed killer), the most used herbicide in the world. Its use has been increasing annually, especially due to the increase in genetically modified crops being grown.

In the latest study, an international team of researchers found that long-term daily exposure (starting prenatally and continuing after birth) to low glyphosate levels considered "safe" by government agencies resulted in multiple benign and malignant tumors, and increased rates of early death in the rats after birth. Yes, the study was done with rats, but... they are mammals, just like us humans. Rats are frequently used in studies to assess chemical safety.

The doses used in the study are currently considered safe by regulatory agencies and correspond to the EU Acceptable Daily Intake (ADI) and the EU’s No Observed Adverse Effect Level (NOAEL) for glyphosate. By the way, European standards are STRICTER than USA standards. A person eating a typical diet with non-organic foods easily ingests the levels considered acceptable by European governing bodies, and in the US ingests even more. [NOTE: Eat organic foods to avoid glyphosate.]

From Environmental Health News: Common pesticide causes multiple malignant tumors in rats

In short: Exposure to glyphosate herbicides caused multiple benign and malignant tumors in rats, including leukemia and cancers of the skin, liver, thyroid, nervous system, ovary, uterus, and kidneys, among others. ...continue reading "Weed-Killer Glyphosate and Cancer"

Published on Leave a comment on Medical Imaging Radiation and Increased Risk Of Blood Cancers In Children
Chest X-ray Credit: Wikipedia

A recent study found that there is an increased risk of blood cancers occurring in  children who receive X-rays and CT scans. And as the number of X-rays and CT scans go up (thus an increase in total cumulative dose of radiation), the risk of a blood cancer also increases.

The researchers refer to these increased number of cancers as "radiation-induced hematologic cancers". These include such cancers as  lymphoid cancers, leukemia, and histiocytic- or dendritic-cell cancers. They estimated that the number of these radiation-induced cancers is 1 in 10 blood cancers in children.

They advise only getting X-rays and CT scans if necessary, and consider getting an MRI or ultrasound instead (if possible).

From Medical Xpress: Study finds 10% of pediatric blood cancers may stem from medical imaging radiation

A study led by UC San Francisco and UC Davis has concluded that radiation from medical imaging is associated with a higher risk of blood cancers in children.

The researchers examined data from nearly 4 million children and estimated that one in 10 blood cancers—some 3,000 cancers in all—may be attributable to radiation exposure from medical imaging. The risk increased proportionally based on the cumulative amount of radiation the children received. ...continue reading "Medical Imaging Radiation and Increased Risk Of Blood Cancers In Children"

Published on Leave a comment on Taking Vitamin B3 Reduces the Risk of Another Skin Cancer
Basal cell carcinoma Credit: Wikipedia

Skin cancer (basal cell carcinoma, squamous cell carcinoma, and melanoma) rates are rising. Skin cancer is the most common cancer in the U.S., with current estimates that 1 in 5 Americans will develop skin cancer in their lifetime. Unfortunately, a person can get repeat skin basal cell and squamous cell cancers. Yikes!

Interestingly, since 2015 studies are finding that a form of vitamin B3 called nicotinamide are a skin cancer preventive (chemopreventive) medication. That is, taking nicotinamide supplements reduces the risk of basal cell and squamous cell cancer development.

A recent study found that persons who already had one skin cancer removed, can significantly reduce the risk of a second skin cancer occurring if they ingest 500 mg of nicotinamide two times daily for more than one month. An overall 54% reduction in another skin cancer occurring in this group!

The biggest reduction of another skin cancer occurring was in those who had a squamous cell carcinoma removed. However the preventive effect was reduced in those who already had multiple (2 or more) skin cancers.

Excerpts from NPR: Vitamin B3 can help protect against skin cancer. Here's who may benefit

Doctors who perform skin cancer surgeries often recommend nicotinamide — which is a form of Vitamin B3 — to their patients. It's been shown to protect cells from UV radiation damage. ...continue reading "Taking Vitamin B3 Reduces the Risk of Another Skin Cancer"

Published on Leave a comment on Wireless Radiation and DNA damage
Cell tower Credit: Wikipedia

We love our wireless stuff - cell phones, laptops, and so many other devices. Manufacturers making these devices say the wireless radiation exposure from these devices is safe, but is it? Independent researchers have been raising concerns for years over wireless radiation (RF radiofrequency electromagnetic field or RF-EMF) exposures, while industry researchers say it's completely safe. Which is it?

Australian researchers recently analyzed more than 500 scientific studies and found that "evidence reveals that RF-EMF exposures may be genotoxic (damaging to DNA) and could pose a cancer risk". They pointed out that:

"Genetic alteration [damage] is a well-established trigger for cancer development (10). Genotoxicity is the ability of a physical or chemical agent to induce genetic damage, which may result in genetic mutations (11), and represents a critical pathway to cancer."

They also found strong evidence of bias in research design and results, with the funding of each study most important in determining results. 74% of the studies (done by independent researchers) reported genetic damage in both humans and animals from wireless radiation exposure. On the other hand, industry research funded by industry tended to find that there are no problems to health ("null results").

Now needed: Time for manufacturers to focus on lowering wireless radiation from the devices, antennas that point away from the body, and more caution and research on 5G towers and radiation.

From Environmental Health News: Wireless radiation exposure linked to DNA damage

A recent review published in Frontiers in Public Health analyzing more than 500 studies found that a substantial body of scientific research has reported genetic damage from wireless radiation exposure in both humans and animals.

    • Over half of the studies showing DNA damage found impacts at wireless exposure levels below the safety limits of most countries.

...continue reading "Wireless Radiation and DNA damage"

Published on Leave a comment on Exercise Is 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 Is 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"