By Kris Walker MD
Sports gels are increasingly popular to use during exercise due to their convenience, ease of consumption, and quick delivery of energy.  Many sports gels contain gelling agents, which are food additives based on polysaccharides or proteins.  They are used to thicken and stabilize foods.  Some examples of gelling agents are guar gum [...]

The acidity or alkalinity of foods may have a profound effect on retaining muscle, health and endurance performance.
By Kris Walker MD
Intro: Acid-base homeostasis in humans is critical to health.  An important property of blood is its degree of acidity or alkalinity.  Body acidity increases when the level of acidic compounds in the body rises [...]

By Kris Walker MD
Ultra-endurance events, defined as events that last over 5 to 6 hours, are increasing in number and popularity.  These include 24 hour mountain bike races, ironman and half-ironman length triathlons, 100 mile trail runs and mountain bike races, and even multi-day events.  These competitions are challenging even to finish and require specific [...]

By Kris Walker MD
There are a multitude of energy bars on the market and you may be wondering, “How do I choose between them all?” The answer depends on what you are using the bar for. You can use a bar for a meal replacement or snack, energy boost before working out, calorie replacement during [...]