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Say Toodle-oo to the Winter Boo-hoos

30 Jan 2026

Each October, like clockwork, a dear friend of mine reminds me to begin taking vitamin D supplements– just in time for the perils of daylight savings time. His reasoning? Its prophylactic effects...

Fishing for the Benefits of Fish Oil Supplements

8 Jan 2026

It is estimated that there are more than 100,000 different dietary supplements on the market in North America. Some of these, like “detox” supplements are totally useless, others such as immune...

Will Vitamin D Go the Way of Cod Liver Oil?

20 Jun 2025

This article was first published in The Montreal Gazette....

Hard Facts: What You Didn't Know About Bone Health (But Should)

30 May 2025

This past year, I’ve spent an unreasonable amount of time thinking about bones. Talking about bones. Reading about bones. Writing about bones. Basically, becoming the unofficial bone correspondent...

I’ve Been Wearing Sunscreen Wrong

7 Mar 2025

This article was first published in The Skeptical Inquirer.

Protect Yourself Against Sunscreen Myths

14 Jun 2024

This article was first published in The Montreal Gazette.

The Vitamin D Puzzle

24 Jan 2024

Walk into any pharmacy or health food store and you will see shelves filled with vitamin D supplements. Then stroll over to a bookstore and you will find all sort of books touting the wonders of...

Splendid Rays and Skin Cancer

29 Mar 2022

Helios, the sun god in Greek mythology, rode a chariot across the sky, east to west, sunrise to sundown, year round, as dusk bestows silvery moonlight accompanied by stars that extend to infinity...

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