Some of the most popular supplements today are the so called pre-workout nitric oxide (NO) boosters 1, 2. These contain a panoply of ingredients, but the main one is arginine. The rationale goes that arginine is a nitric oxide (NO) precursor and NO is a potent vasodilator 3, 4, which in turn supposedly will boost blood flow to exercising muscles, performance and recovery. And while arginine supplementation is beneficial for various clinical populations (see below), studies in healthy adults have not unequivocally supported the marketing hype surrounding arginine supplementation and nitric oxide boosters 1, 5, 6. Why? Let’s take a look under the hood…
It is dangerous to be right when the government is wrong. - Voltaire
Printer friendly pdf, 9 pages, 98 references (right-click to download and save):
For reasons that are not readily apparent, there appears to be a conservative political movement that opposes the use of testosterone in older men. This was clearly demonstrated by the report of the Institute of Medicine, which felt that testosterone is not yet ready for prime time and that there is still a need for studies to prove its efficacy 1. Along the same lines, the guidelines of the Endocrine Society on testosterone use in older men seem to be ultra-cautious 2 . But fortunately, there are also other, more liberal guidelines and recommendations 3-5.
Probably no other medical issue has been bombarded by the influx of “expert” views from all walks of life; from endocrinologists and psychiatrists to urological surgeons and gerontologists, from the lay press to the regulatory agencies and from the pharmaceutical to the entertainment industries. The dismal result of all this free-for all cacophony of opinions is a great deal of confusion, erroneous information and significant detriment to patients and physicians alike.
Let’s take an in-depth look at the reasons for the negative attitudes to male testosterone replacement therapy (I will cover post-menopausal testosterone replacement in an upcoming article), and the hard scientific data that refutes it…
A common question actually. Counting Calories, is it essential for reaching your goals of gaining or losing weight? In this vid, I give the simple answer and a formula for those who do decide they need to count calories to make progress.
Post Workout Carb Facts You Need To Know
Two articles mentioned in this vid you may want to read for all the details:
Although I covered this topic in detail in an earlier article HERE, it’s been a while since I updated the topic. So, here’s my latest thoughts on the issue of soy via this vid.
Risk factors and chronic diseases often get more attention among the middle-age and elderly population. And rightly so, since that’s when the manifestations of chronic diseases start to show up, and when people get reminded about their chronological age. An integral component of successful aging (also known as healthy aging) is the freedom of physical disabilities and debilitating chronic diseases 1-3. While it is true that it is never too late to become health conscious and reap the benefits of a healthy lifestyle 4,5, the fact remains that the sooner we start the better off we will be as we get older. If you are in your 20s or 30s, or have kids, read on…
Three square meals a day…breakfast, lunch and dinner. Can a person achieve great muscle-building results with just three meals a day?
Absolutely…and I’ll tell you how.
In discussions about dieting, a topic that often comes up is that of “cheating”; is it good or bad to cheat once in a while during a diet?
In order to answer this questions appropriately, it is necessary to look at both the quantitative and qualitative aspects of dieting, and the physiological and psychological responses they each elicit.
My objective science response to this is “I told you so!”
But seriously, this is a very important study, I have said something similar for decades. For example, if you read my article Brink’s Unified Theory Of Nutrition you will see I essentially concluded what this recent study found: Not all calories are created equal, macro nutrient ratios matter, and there’s profound effects from simple changes in those macro nutrient ratios on body comp, and tracking changes in fat vs. weight is what actually matters… I don’t know if this study will get the attention it deserves in the media, or by the main stream nutrition/med community, but it’s a seminal study. The fact is, older studies that simply track weight loss/gain need to be scrapped as they are essentially of no value in my view. Modern studies such as this, that actually look at end points that matter, are what will finally answer age old questions on nutrition.
Below is write up of the study for non-science types, and a link to the full study follows for those who wish to read that too.
Calories Raise Body Fat When People Overeat, Not Protein
Medical News Today
In a study published in the January 4 issue of JAMA, researchers assessed 25 healthy individuals who were randomized to different levels of overconsumption on protein diets whilst living in a controlled setting. They found that those who consumed the low-protein diet gained less weight compared with those eating normal and high protein diets. Furthermore, they established that calories alone and not protein seemed to contribute to increases in body fat and that protein did contribute to changes in energy expenditure and lean body mass.
According to background information in the article, “Obesity has become a major public health concern with more than 60 percent of adults in the United States categorized as overweight and more than 30 percent as obese.” However, which role the composition of a diet plays in response to overeating and energy dissipation remains unclear.
Mitochondria are the ‘energy powerhouse of the cell’ that convert the foods we eat to usable energy our body uses to fuel life sustaining reactions within cells, our daily activities and athletic performance 1-4. While energy production capability and muscle performance might seem to be more relevant to sports, it also equally important for achievement and maintenance of health throughout the life span. In this article I will describe how chronological aging affects our mitochondria, its implications and the ins-and-outs of a new type of supplements marketed at “exercise mimetics”.