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A picture of Leo Bear-McGuinness

Leo Bear-McGuinness profile page

Science Writer & Editor

 at Technology Networks

Leo is a science writer with a focus on environmental and food research. He holds a bachelor's degree in biology from Newcastle University and a master's degree in science communication from the University of Edinburgh.


The University of Edinburgh  

Newcastle University  

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Published Content
Total: 99
Bits of chocolate stacked.

Dark Chocolate May Pose Slight Heavy Metal Risk to Children

The findings appear to stand in contrast to the well-publicized results of a 2023 Consumer Report, which concluded that a third of chocolate products tested contained harmful levels of lead and cadmium.
Vacuum-packed sausages

Ultra-Processed Foods May Increase Insomnia Risk

Ultra-processed food could be behind the insomnia experienced by one third of adults, according to a new study.
A hand holding a fish oil tablet.

Fish Oil Supplements May Increase Stroke Risk in Healthy Adults

The researchers say their findings suggest that fish oil supplements may have different roles in the progression of cardiovascular disease depending on the health of a person.
Keto diet food from above.

Keto Diet May Age Organs

Following their findings from mouse experiments, researchers have encouraged humans following the ketogenic diet to take intermittent breaks.
A bowl of fruit and veg between someone's hands.

Yes, Plant-Based Diets Really Are Better for Your Health, Review Finds

After reassessing 48 previously published papers on the health effects of plant-based diets, researchers from the University of Bologna concluded that such lifestyles reduce the risk of cardiovascular diseases and certain cancers.
A person sprinkling salt.

Regularly Salting Your Food Could Increase Your Risk of Stomach Cancer

In a new study, participants who said they regularly salted their food were 41% more likely to develop stomach cancer than those who left their saltshakers untouched.
A wooden spoon filled with olives and olive oil.

A Daily Drizzle of Olive Oil May Lower Your Dementia Risk

Harvard researchers found that participants who regularly consumed olive oil were less likely to die from dementia than their animal-fat-frying counterparts.
A bowl of falafel salad.

Plant-Based Diet Can Reduce Severity of Colorectal and Prostate Cancer

Two separate papers both concluded that plant-based diets may minimize cancer progression.
Heavy Metal Analysis In Food infographic snippet

Heavy Metals Analysis in Food

Download this infographic to explore the health detriments caused by the "big four" heavy metals, which foods are prone to contamination and how to test for heavy metals.
Bowl of red cranberries.

Cranberry Extracts Boost the Gut Microbiome

Researchers show that cranberry extracts can boost the number of Bifidobacterium bacteria in a person’s gut.