Entries by Chet Zelasko

When in Doubt…

When I was doing a post-doc in the late 1980s, I was part of a team of researchers who tested a group of swimmers. This was one of four parts of an overall documentary on an innovative look at health by the PBS’s Nova. I had about a half-second of screen time in this PBS […]

Does Your Weight Affect Disease?

Researchers from Finland investigated the relationship between being overweight/obese and infectious diseases. Not any one specific disease—all 925 of the known microbes that cause infectious diseases. They used data from two Finnish studies and the UK Biobank Study. They obtained the height and weight to calculate BMI and examined hospital and death records from the […]

Spring Means Renewal

It’s no secret I’ve had one cataract removed, and the other eye is next week. When I was having the surgeon check the eye this week, he asked me a question. The conversation went something like this. “Do you have a son?” “No,” said I. “I was wondering because there’s this guy on the radio, […]

Are Peptide Shots Safe?

The FDA held a meeting at last Friday to define what constitutes “from foods” in dietary supplements. The focus was on peptides, short chains of amino acids that have many functions in the body. For example, GLP-1 receptor agonists that are popular for type 2 diabetes and weight loss is a peptide. Insulin is also […]

Everything Old Is New Again

In Tuesday’s Memo, I said I’ve heard this song before. Actually, I’ve heard it twice before. Due to the nature of this trip around the world of high protein, the song “Everything Old is New Again” seems completely appropriate. The first time I heard the high-protein song was in the early 1990s. When the first […]

Vitamin D vs. Long COVID

Returning to the vitamin D study, the rest of the headline suggested that taking vitamin D upon getting COVID may reduce symptoms of long-term COVID (LTCOVID), a serious aftereffect of a COVID infection that can impact the nervous and muscular system. Brain fog, chronic fatigue, and pain are some of the common symptoms. The reason […]

Does Vitamin D Beat COVID?

My Monday morning news feed contained at least three referrals to a recent article published in the Journal of Nutrition. The headlines were all about the same: vitamin D supplementation is ineffective in the short term as a treatment for COVID but provides insight into how to reduce the risk of long-term COVID symptoms. I […]

What Changed? 2015 vs. 2025 Dietary Guidelines

If you read any of the commentary about the latest dietary guidelines, you would have thought there were radical changes. “Eat or drink full-fat dairy! Use beef tallow! Ultra-processed food should be eliminated!” If you took the time to read the synopses, there are very few differences between the recommendations. They still use the same […]

The 2015 and 2025 Dietary Guidelines

What were the Dietary Guidelines that were published for 2015? Can you remember any of them? What are the Dietary Guidelines for 2025? Did you read them? Here’s your chance. The 2015 Dietary Guidelines were released 10 years ago; the 2025 version about a month ago. Research was reviewed. Meetings were held. Comments were given. […]

Clock-Changing Solutions

We’ve become so obsessed with sleep, even our watches can track the amount of quality sleep we get, so we can expect something unusual tonight. We go to bed at our usual time and for most of us in the U.S., we wake up one hour earlier than planned because the clocks have changed. As […]