Entries by Chet Zelasko

Prenatal Nutrition: Should You Worry About Folic Acid?

I’ve been working on updating the research for the second edition of the Healthy Babies CD, and that includes nutrients such as probiotics, vitamin D, and one of the most important nutrients, folic acid. Since folic acid was added to cereal grains in 1998, there have been significant reductions in neural tube defects, but folic […]

BMI, WHR, and Lifestyle

The study we’ve been examining is interesting on so many levels: large numbers of subjects; new statistical techniques due in large part to progress in computing capabilities; genetic analysis that allows for rapid analysis and identification of polymorphisms. It’s all very exciting. You’re probably anticipating a “but” coming and you’d be correct. This study demonstrated […]

Waist-Hip Ratio vs. BMI

In Tuesday’s message, I said researchers used a unique approach to answering the question of whether waist-hip ratio (WHR) is associated with cardiovascular disease and type 2 diabetes regardless of BMI. They found 48 genes which were associated WHR, a unique approach using the genetic information with Mendelian randomization of epidemiological data. If that isn’t […]

Redefining the Risks of Extra Weight

Studies show that 70% of the population is overweight; by definition, that means that their body mass index (BMI) is greater than 25 or more. But are all overweight people at the same risk? Just because you’re overweight, are you automatically at greater risk for cardiovascular disease and type 2 diabetes? That’s what a group […]

Should You Exercise During Pregnancy?

While everyone wants a healthy baby, many women would like to control their weight gain and avoid gestational diabetes during pregnancy. That’s why I noticed one more article in the Medicine and Science in Sports and Exercise issue I read; in addition, I’ve recording the updated Healthy Babies: From Conception to Breastfeeding audio and want […]

Can Vegetarian Protein Help You Build Muscle?

People often ask me which is the best type of protein to build muscle when weight training. The reason for the question is bodybuilder and weight-training websites that condemn vegetarian protein as not good enough to build muscle. In the same issue of Medicine and Science in Sport and Exercise as the paper from Tuesday, […]

Does Exercise Reduce Libido?

A recent health headline said that strenuous exercise reduces a man’s libido. I would propose that nothing gets men’s attention—and probably quite a few women—more than sex. Should you be worried? Researchers conducted an online survey targeting men that included questions about demographics, exercise habits, and sexual libido. What they found was that as exercise […]

Echinacea and the Immune System

As I write this, there are 1,098 citations in the PubMed database for echinacea. I looked at every title to see if it was relevant to answering one question: should people who have an autoimmune disease use echinacea for allergies and colds? I examined at least 100 abstracts and downloaded five papers that seemed to […]

Immune Boost 1-2-3 Cautions

Someone recently asked an excellent question: “Is there any risk in taking higher amounts of echinacea?” I’ll extend that to include vitamin C, garlic, and probiotics. The answer is possibly. I’m not hedging, but it’s complicated. Let me give you some examples. One factor that can apply to any supplement is allergies. Echinacea and garlic […]

Protect Yourself Before You Travel

Paula’s cousin recently visited friends in Arizona, and after she flew home, she got a fever with all the trimmings of the flu. After last week’s posts on boosting the immune system to deal with colds and allergies, there’s a little more you need to know. Spring break is right around the corner and if […]