Fast Isn’t Just His Speed

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There’s one more lesson we learned about how the staff helps keep the birds of prey from getting fat: one day a week, the birds fast. They simply don’t feed them anything other than what may make a mistake and crawl into their cages—which are the size of a living room.

Fasting. What a concept! It’s a gimmick that’s being taught a variety of ways in weight loss programs and books. Maybe to trick the metabolism. Maybe to stay in ketosis. Baloney.

Fasting reflects what happens to the birds of prey when they live in the wild. There are days when they don’t catch anything, or they don’t find carrion. On those days, they don’t eat.

That used to happen to us as well when we didn’t catch animals or the crops failed. When all you have to do is drive to the supermarket or the drive-thru and buy whatever you want to eat, forced hunger doesn’t happen any more. We have to decide to do it. It’s no gimmick; it mimics real life.

I hope this look at what we learned at the Center for Birds of Prey was informative. There’s a lot more I covered in this month’s Conference Call; you can still listen by becoming an Insider. Check it out.

What are you prepared to do today?

        Dr. Chet

Do Birds of Prey Count Calories?

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One of the things about bird of prey that surprised me was how light birds such as eagles and vultures really are; that’s a turkey vulture above. While the weight can vary depending on the origin of the eagles, they weigh 6–10 pounds. With a wingspan of 6–7 feet, they seem imposing, but in reality they’re mostly feathers and feathers really don’t weigh all that much.

The birds are weighed regularly, and their diet is adjusted to prevent weight gain. The staff portions how much they eat by the number of calories the food contains. In other words, the staff counts calories for the birds. Let me repeat that: they control the birds’ weight by counting calories.

Calorie counting works for birds of prey and it works for humans as well. In The Weight Loss Cycle CD of the Optimal Performance Program, I cover all the research that proves why that’s true. I know what you read and hear elsewhere, but I’m here to tell you that counting calories keeps these magnificent creatures at their target weight. It will work for you, too.

One more lesson from the birds of prey, and I think it will surprise you. That’s coming on Saturday.

What are you prepared to do today?

        Dr. Chet

What Can We Learn from Birds of Prey?

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When Paula and I spent last week visiting our son and daughter-in-law in Summerville, South Carolina, one of the things we did was visit the Center for Birds of Prey, and it was a tremendous experience. We saw bald eagles, turkey vultures, horned owls, storks, and many more, including a truly amazing flying demo with a hawk, an owl, a kite, and a vulture. The birds on permanent display have been injured and wouldn’t survive if returned to the wild. I could spend all week on a single bird and still not cover all we learned. To find out more, check out their website www.thecenterforbirdsofprey.org, and if you’re near Charleston, plan to visit. They do wonderful work rescuing birds of prey and nursing them back to health as well as breeding birds for other educational programs or to help save a species.

Paula asked a great question during the flight demonstration: do the birds in captivity get fat? The answer forms the basis for this week’s Memos. The answer is yes, of course. When a bird must fly for hours to find and catch food, it uses a lot of calories. If the birds can’t fly, they die in the wild. When the birds are in captivity, they can’t burn enough calories so if they eat as much as they want, they get fat.

Lesson? If you’re not moving regularly and every day, it’s really hard to control your weight. More on Thursday.

What are you prepared to do today?

        Dr. Chet

I’m Alive V2.50

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When I opened my eyes yesterday, I said the same thing I’ve said for the past 26 years: I’m alive! When I wake on May 10th every year, it means I have at least one more year of life. It makes no sense in the real world, especially for a guy who talks about science so much, but I can’t change the way I think about this one thing.

I can’t believe it’s been 50 years since my Dad died on May 10th, 1969. But ever since I opened my eyes on May 10th when I was 41, the age my dad died, I believed I would live another year. It makes no sense, but it’s what I believe.

This year is going to be a special year, and not just because I have a special little guy who’s counting on me. I have three specific goals. Physical. Financial. Professional. I’ll give you some insight into part of one: I want to triple the number of Memo subscribers. To do that, I’m going to need your help. If you benefit from what I write by learning something new, getting the real story behind health headlines and research, and improving your health—tell people about it. Encourage them to subscribe to the Memo today. It’s free and I’ll never sell or share my list info, so there’s no risk in giving it a try.

I’ll keep you posted as this year continues. I’m excited and glad you’re a part of this journey. We have a nation that needs to get healthy. Let’s get about doing it right now.

What are you prepared to do today?

        Dr. Chet

Move Up to Interval Training

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Recently I watched an interview with the cast and production staff of the third John Wick movie, which will be released soon. What struck me was the physical preparation to do the action and fight scenes. When the third installment of the movie was announced, Keanu Reeves shouted to himself. “All right. It’s time for John Wick Training!” He worked more than six months for six to eight hours per day on physical training specific to the fights and action scenes that were going to be in the movie, and he uses stunt doubles very rarely—it’s all up on the screen. Halle Berry, who’s new to the series, jumped at the chance to do that training as well. I can’t wait.

You and I don’t have the hours in the day to do that type of training, but we can do better than we are right now. Interval training seems to have become a mainstay of fitness recommendations. I’ve used it for years to increase my fitness level. It’s stressful because the effort is so hard, but you can adjust the effort to where you are today.

Check out the Health Info titled Interval Training. It explains the concept and how to construct your own interval program. If you want to take it one step up in intensity, check out the Spartan Workout that combines strength with endurance interval training.

What are you prepared to do today?

        Dr. Chet

How to Bust a Plateau

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It happens to everyone when we lose weight: the scale stops moving downward even though we’re doing everything the same as we’ve been doing. How do we start losing again?

Patience. While the scale may not move, there’s a lot going on. Hundreds of changes are happening in just about every cell of your body as it adapts to your new eating and exercise regime. Those changes take time to happen, and you just have to ride it out. Don’t reduce your calories any more than you have. Reach for patience; remind yourself that great changes are happening even if you can’t see them on the scale.

However there are a couple of ways that exercise may help you start losing weight again. The keys are: do you have the additional time? And are you fit enough to do them? You probably need to talk to your doctor to know. To learn more, check out the Health Info paper titled Busting Weight Loss Plateaus.

What are you prepared to do today?

        Dr. Chet

What’s Your Body Mass Index?

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You may be tempted to measure how you’re doing on the way to your health goals with body composition read-outs on scales and other outputs related to body fat analytics, but how accurate are they? If the device used is one that has you stand on a scale or hang on to handles of some sort, the accuracy of those numbers is very limited.

Those devices are based on impedance technology—the resistance of a very small current passed through your body. It actually can be very accurate when it comes to total body water, something very important for people with congestive heart failure. Everything else is based on algorithms that assume specific characteristics of the body. Those may be valid assumptions, but the variability is too great person to person. How do I know that? I worked on the impedance device as a grad student, so I know it well.

If you really want to track how you’re doing related to fatness, use the Body Mass Index. Every health insurance company uses that as a metric to assess your fatness.

“But I have bigger bones!” you say. Or maybe the weight recommended for you seems too high. In fact you may have a larger or smaller frame than average, and I explain how to know for sure with an easy measurement in the Health Info section titled Body Mass Index. Check it out today for an in-depth look at BMI.

What are you prepared to do today?

        Dr. Chet

The End of Constipation

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I had a question recently about the difference between a laxative such as Miralax and fiber. While they’re both safe, there are similarities and there are differences.

They are similar in that they draw fluid into the intestines. Miralax uses chemicals while fiber uses plant sources; both draw fluid into the gut to soften the stool.

Where they’re different is that fiber can help two more ways. It can add bulk to the stool to aid in transport and be used as a prebiotic and feed the probiotics or good microbes. And if those microbes are fed better, they work better.

If you have a chronic issue with constipation, time to check in with your healthcare provider. If it’s an occasional issue, as can affect us all, check out this Health Info titled The Constipation Solution. It has worked well for both adults and children.

What are you prepared to do today?

        Dr. Chet

The Keto Diet and Fiber

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More and more people are trying the ketogenic diet. If you do, the directions recommend that you eat plenty of green leafy vegetables for the vitamins, minerals, phytonutrients, and especially the fiber. The problem is that many people cut the carbs from all sources and that includes vegetables.

The simplest way to give yourself some insurance while doing the ketogenic diet is to get at least five or more grams of fiber per day from a fiber supplement. Remember, the grams of fiber do not count as carbohydrates because they’re not absorbed. Check out Your Fiber Insurance, a free Health Info on my website for more information on exactly how to get your fiber every day. Health Infos are posted in PDF format so they can be downloaded, printed, and shared with others.

But what if in spite of all you do, you get constipated? See Thursday’s Memo for the answer.

What are you prepared to do today?

        Dr. Chet

Food Is Better Than Supplements, But …

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Getting your nutrients from food by eating a healthy diet is the most desirable way of getting vitamins, minerals, and phytonutrients. Period. If we could all do it, no question that’s the best way. But you and I don’t live in some fantasy world. We’re busy. We don’t always have enough time to shop and cook healthy meals. Dietary supplements have helped fill the nutrition gap.

What should we think about this latest research? Should we stop taking supplements, especially calcium? Before I give you my opinion, I want to tell you that I emailed the corresponding author of the paper, a brilliant woman and a talented researcher. I had two questions about the study. She answered me the same evening—Saturday night before Easter. That I got such quick reply was remarkable; I’m still waiting for answers from other researchers I contacted months ago.

The first question I asked was a basic one: what was the mortality rate of the subjects in the study compared with the national cancer mortality rate? The national mortality rate is 156 deaths per 100,000 people per year. That works out to 1.6 people per 1,000. The rate in the study was about 3 people per 1,000. She replied that the study results are not directly comparable for complicated reasons.

But here’s something that can be directly compared. A 62% increase in cancer mortality would be transferable to national statistics because that’s the idea: to generalize to the entire population. A 62% increase means that 2.5 people per 1,000 would die from cancer in a given year instead of 1.6. When applied to the entire population that could be a lot of people, but it applies only to those who took over 1,000 mg of calcium per day.

The other question I asked was whether they had data on how long the people were taking the supplements; NHANES asked about the 30 days prior and recorded the prior 24 hours. How long were they taking the supplements? Weeks? Months? Years? Decades? That might have made some difference. The data were collected in the questionnaires used for two of the cycles that I examined, but that data was not used in the analysis.


The Bottom Line

I think we should eat the best diet we can. I also think we should use quality dietary supplements to complement our diet. This study was an exercise in statistics more than nutrition. It can tell us the statistical outcomes of the people in the study, but it can’t really be used to tell us anything about what we should do as individuals.

Not every person who took a higher amount of calcium died from cancer. On top of that, if supplementation did have a significant negative impact on our health, it stands to reason there would have been more negative results than just for calcium. Because the research questions were fitted to the available data, there’s just too much we don’t know about factors that can influence the results.

Another good question the study didn’t ask is why people were taking calcium. For instance, a woman with osteoporosis may take calcium for better bone health. Did those women have fewer broken bones with supplementation? If so, that might be worth any higher risk that exists. As with any nutritional intervention, it’s important to weigh the pros and cons. If you’re concerned, talk to your healthcare professional about what you should do; they know you and your health status and can help you make the right choices.

Supplement confusion is a good reason to get a copy of my new CD Supplementing Your Diet. Check out why at drchet.com.

What are you prepared to do today?

        Dr. Chet

Reference: Ann Intern Med. doi:10.7326/M18-2478.