Why do they do this?

“Scientists in Indiana are reporting progress toward development of low glycemic and slowly digestible starch, a form of starch that would be less apt to cause the spike in blood sugar – and perhaps sharp hunger pangs – that many individuals experience after eating bread, baked goods, and other high-carbohydrate foods.”

The rest of the summary can be read here.

My only question is why?

I can understand the need for people to consume healthier foods – particularly than those listed in the quote above. But what if we just ate less of that food and more fruits and vegetables, healthier meats and drank more water? What if we just ate grains as they grow in the field?

Look in your pantry. Foods in plastic bags and carboard boxes are loaded with things that used to be good, healthy foods. Take enriched white flour for example. Out in the field, its a perfectly healthy . . . → Read More: Why do they do this?

Is your testosterone low?

A recent study presented at the Endocrine Society Annual meeting suggested that males over 50 with low testosterone had a 33% greater risk of all-cause mortality than those who had higher levels of testerone. Low testosterone was identified as the lower-limit found in healthy young males.The study followed 800 men for 18 years on average, a large sample size for a very long period of time. The low testosterone group had the following characteristics:

higher levels of inflammation markers, which contribute to several forms of cardiovascular disease
larger waist measurement (greater than 40 inches)
metabolic syndrome – low HDL cholesterol, high triglycerides, high blood sugars and hypertension.

Over the 18-year period, men in the low-testosterone group had a 33% greater risk from all-cause mortality than the normal / high testosterone group. This is a stout finding given the characteristics of the study, indicating that even if problems exist in methodology the results are likely . . . → Read More: Is your testosterone low?

Answering this research question

Reading this summary, I felt an urge to blurt out: “No blank, Sherlock!” A recent study published in JAMA, a leading pillar of medical research dissemination, compared low GI diets with low-fat diets on insulin secretion in high insulin secreters. On the surface, this appears to be a legitimate research question. Insulin is related to glucose metabolism and given the current state of obesity and type II diabetes in America, this might be something we should know. However, most people in the medical fields should intuitively know this. The glycemic index of any food indicates the level it raises blood sugar when consumed. The higher the glycemic index, the higher the blood sugar response. For example, twinkies rate rather high on the glycemic index. Consume two or three of them and your blood sugar will spike. At least for a while. In response, your body will release (secrete) insulin to bring . . . → Read More: Answering this research question

The fallacy of "fat-burning" zones and low-intensity exercise

Press Release 1: Walking not enough for significant exercise benefits.Press Release 2: “No time to exercise” is no excuse, study shows.

By most publications, walking is the most popular form of physical activity. And why not? It’s easy to incorporate walking into your daily routine. You can make a concerted effort to take the stairs rather than the elevator, walk down the hall to speak with a colleague rather than emailing or phoning them, or even take a quick 10 minute walk on your lunch hour.

For the longest time, many health-related organizations trumpeted the healthy effects of walking on cardiovascular disease, chronic disease, mental disorders and weight control. In fact, Shape Up America has dedicated a large part of their mission to their 10,000 steps a day program. The main message of this program (and others like it) is to accumulate 10,000 steps (about 5 miles) each day and your health will . . . → Read More: The fallacy of "fat-burning" zones and low-intensity exercise

Eat Meat, Lose Weight? Could Dr. Atkins have been right?

The text between the dashed lines comes directly from the press release. A link to view the press release is at the bottom of this post. Unless otherwise stated, the text between the dashed lines is exactly as it appears in the press release.All text after the dashed line contains my comments.

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A study in the September, 2006 issue of Cell Metabolism evaluated normal and obese individuals for their response to the hunger-fighting hormone peptide YY (PYY). In previous research reports, it was shown to reduce food intake by up to 1/3 when given by injection.

“We’ve now found that increasing the protein content of the diet augments the body’s own PYY, helping to reduce hunger and aid weight loss,” said Medical Research Council clinician scientist Rachel Batterham of University College London. (Emphasis added by me).

Further investigation in mice . . . → Read More: Eat Meat, Lose Weight? Could Dr. Atkins have been right?