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Dr. Chet’s Health Memos

If it’s in the health news today, I’ll be writing about it as soon as I read the research, both old and new. With my email Health Memos, you’ll know more about making lifestyle choices that will help you get and keep good health. These free, concise updates on health are emailed to subscribers twice a week. Subscribe today and get a free MP3, in English or Spanish, of Dr. Chet’s Top Ten Tips—Small Changes for a Healthier Life.

Brain-Maintenance

Maintaining Your Melon

September 29, 2026/in Memos/by Chet Zelasko

Changing one’s lifestyle is difficult to do, and I think it’s especially challenging if the benefits could be years in the future — specifically doing those things that need to be done now to reduce the decline in cognition that happens as we get older. Two recently published studies have demonstrated how that’s possible. The […]

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https://www.drchet.com/wp-content/uploads/2026/09/Brain-Maintenance.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-29 06:00:002026-09-28 16:41:49Maintaining Your Melon
Xylitol-Dog

Is Xylitol Dangerous?

September 26, 2026/in Memos/by Chet Zelasko

Over the past few years, research papers have suggested that sugar alcohols, specifically erythritol, may increase blood clotting and potentially lead to a major adverse coronary event or MACE for short. It gave me pause — to the extent that I stopped using sugar-free gum when I work out. The same research group recently presented […]

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https://www.drchet.com/wp-content/uploads/2026/09/Xylitol-Dog.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-26 13:50:152026-09-26 13:50:17Is Xylitol Dangerous?
Artificial-Intelligence

The Memo: AI-Free Zone

September 22, 2026/in Memos/by Chet Zelasko

I’m still bugged about the topic I wrote about last week, polyphenols in fruit. It’s not that I don’t think it was an interesting topic. It was. Why did it show up in press release now when it was published in 2023? My sense is that AI was involved, based on what I’ve read and […]

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https://www.drchet.com/wp-content/uploads/2026/09/Artificial-Intelligence.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-22 06:00:002026-09-21 16:32:46The Memo: AI-Free Zone
Fruitbasket

Fruit: Variety is the Key

September 19, 2026/in Memos/by Chet Zelasko

I didn’t want to hold you in suspense, so I already revealed that you can put the banana in your smoothie if you like. I’ll tell you why, but first a little more about the study. The biggest issue, which the researchers acknowledge, is the limited number of subjects. Eight subjects just aren’t enough, nor […]

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https://www.drchet.com/wp-content/uploads/2026/09/Fruitbasket.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-19 06:00:002026-09-18 15:26:47Fruit: Variety is the Key
Bananas

Should You Skip the Banana?

September 15, 2026/in Memos/by Chet Zelasko

Over the years, I think I’ve made it clear that I don’t drink smoothies of any type. I’m also aware that it’s a preferred method for many people to get their fruit, protein, fiber, and other nutrients in a convenient manner. That’s why a recent press release for a study published in 2023 caught my […]

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https://www.drchet.com/wp-content/uploads/2026/09/Bananas.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-15 06:00:002026-09-14 17:27:23Should You Skip the Banana?
Mediterranean-Diet

Carbs and Insulin: Diet Matters

September 12, 2026/in Memos/by Chet Zelasko

On Wednesday, I told you about a study of people who experienced an energy crash after eating carbs. The next study was more pragmatic: we have non-diabetic people who seem to have reactive hypoglycemia (RH), but can we treat it with diet alone? This is a concern because many believe that RH in these people […]

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https://www.drchet.com/wp-content/uploads/2026/09/Mediterranean-Diet.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-12 06:00:002026-09-11 15:50:18Carbs and Insulin: Diet Matters
Insulin-and-Carbs

Carbohydrates and Insulin

September 9, 2026/in Memos/by Chet Zelasko

On a typical busy morning, a person has a fairly good dose of carbohydrates in the form of a sugary cereal, a bagel, a pastry, or a breakfast sandwich from a drive-thru. Then a couple of hours later, they seem to crash—not their car, but their energy seems to drain away. Maybe they start to […]

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https://www.drchet.com/wp-content/uploads/2026/09/Insulin-and-Carbs.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-09 06:00:002026-09-08 16:11:20Carbohydrates and Insulin
Deadlift

Three Challenges

September 1, 2026/in Memos/by Chet Zelasko

This weekend is the last holiday of the summer or the first of the fall, depending on how you look at it. I’d like to challenge you to try three different tasks if they are not part of your regular routine. I’ve talked about high-intensity interval workouts a lot the past couple of months. I’m […]

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https://www.drchet.com/wp-content/uploads/2026/08/Deadlift.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-09-01 06:00:002026-08-31 17:10:12Three Challenges
Omega-3-and-Omega-6

Functional Essential Fatty Acids

August 29, 2026/in Memos/by Chet Zelasko

Understanding that linoleic acid is the essential omega-6 fatty acid and alpha-linolenic acid (ALA) is the essential omega-3 fatty acid, the logical question would be what about fish oil and other sources of omega-3 fatty acids? It’s just a little complicated, but let me explain. It’s true that in humans, we can use ALA to […]

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https://www.drchet.com/wp-content/uploads/2026/08/Omega-3-and-Omega-6.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-08-29 06:00:002026-08-24 16:10:21Functional Essential Fatty Acids
EssentialFattyAcids

Essential Fatty Acids

August 25, 2026/in Memos/by Chet Zelasko

There are always controversies in nutrition. With all that’s been written about seed oils and sources of omega-3 fatty acids, I thought we’d go back to the basics this week—back to what are the essential fatty acids, seen above floating in the bloodstream. Similar to essential amino acids, essential fatty acids are the fats that […]

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https://www.drchet.com/wp-content/uploads/2026/08/EssentialFattyAcids.jpg 630 1200 Chet Zelasko https://www.drchet.com/wp-content/uploads/2017/08/Logo-cz.jpg Chet Zelasko2026-08-25 06:00:002026-08-24 15:43:13Essential Fatty Acids
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