Entries by Chet Zelasko

Can Cutting Calories Improve Your Mood?

In research like the CALERIE study, there’s a tendency to focus on physical changes but what about mood, depression, and quality of life (QOL)? Did researchers find changes in those variables as well? Let’s take a look. While the two-year span of the data analyzed varied slightly from other phases of the study, physiological results […]

Saving Muscle While You Reduce Calories

Several studies have been published from the CALERIE study data with even more interesting revelations, so I’ll review several over the next few Memos. I’ll start with changes in body composition in those who restricted calories (143 subjects) and those who continued to eat normally (75 subjects), often called ad lib or ad libitum. Remember, […]

It’s All About the Calories!

One of my long-held beliefs is that where weight is concerned, it’s all about the calories—and I’m happy to say that this study reinforces my belief. But when I’m wrong, I’ll tell you. Case in point: as I continued to examine the CALERIE trial, it became apparent I had made a mistake in the number […]

Reducing Calories Improves Immunity

The two-year results from the Comprehensive Assessment of Long-term Effects of Reducing Intake of Energy (CALERIE) clinical trial—the first controlled study of calorie restriction in healthy humans—were released last week. The purpose of the study was to determine the benefits and hazards of calorie restriction. Animal studies have demonstrated that reducing calories up to 40% […]

The Price You Pay

On Tuesday, I asked where you’re spending your time. There’s a price for everything that we do and what we don’t do, even if the outcome will ultimately be positive. Here’s a personal example. It’s no surprise to any reader that I had a knee replacement just before Christmas and have been spending time rehabbing […]

The Right Choices

What do you think is more important: the state of your garage or the state of your clothes closet? The state of your basement or the state of your car? The state of your desk or the state of your pantry? Do you want them neat and organized, or are you okay with going through […]

Update: E-Cigarette Safety

As the European Respiratory Society held their annual convention, several research studies made the health news, including e-cigarettes and vaping. The appeal of e-cigarettes is that they seem to be safe–you’re not actually burning tobacco with its associated chemicals and inhaling that into your lungs. E-cigarettes remove all that bad stuff and associated negative health […]

B6, B12, and Lung Cancer

The overwhelming message from the study I’ve been reviewing this week: don’t smoke cigarettes. Period. That’s the true cause of most cases of lung cancer. There was no increase in lung cancer in subjects taking high doses of B6 or B12 who never smoked or in those who quit more than 10 years before the […]

Behind the Misleading B Vitamin Headlines

Headlines are designed to be provocative. With so many sources of news to choose from, something must get you to click on that link. The problem is when the articles and posts are misleading and, in some cases, just wrong. There were primarily two things wrong about the two online articles I cited in Tuesday’s […]

Do Vitamins B6 and B12 Cause Cancer in Men?

The headline in The Atlantic said: “Vitamin B6 and B12 Supplements Appear to Cause Cancer in Men.” The Huffington Post said: “Men: Taking Vitamins B6 and B12 Could Increase Your Risk of Lung Cancer.” There were few news sources that didn’t pick up this provocative headline. As you might expect, I started to get questions […]