Robert Kennedy, publisher of Oxygen, MuscleMag, dies of cancer at 73

The man behind the Ontario-based publishing house that produces a slew of popular health books and fitness magazines, including Oxygen and MuscleMag, has died.

Robert "Bob" Kennedy, who founded Robert Kennedy Publishing, died of complications from cancer on Thursday night at his home in Caledon Hills, Ont., north of Toronto. He was 73.

"He showed me how to live my life as one filled with possibilities. Through him I became what I am today, a story that is familiar to many others who have been touched by Bob’s generous, warm and colourful spirit," his wife Tosca Reno wrote on her personal blog Friday.

What you should know about artificial sweeteners

Aspartame, sucrose, acesulfame potassium, stevia: From yogurt to diet pop, artificial sweeteners and sugar substitutes are everywhere, appealing to the growing number of consumers who want to watch their weight.

Despite the sweeteners’ ubiquity in the grocery aisles, however, there’s no end to the confusion about their safety.

Companies that sell artificial sweeteners, or foods made with them, assert they are harmless. Advocacy groups, such as the Washington, D.C.-based Center for Science in the Public Interest, cite studies that link some of them to cancer. The sugar lobby (yes, such a thing exists) argues artificial sweeteners are inferior to the real article. Then there’s the conspiracy theorists who liken sugar substitutes to poison.

The Vegetarian Athlete

As a vegetarian, do you wonder if you’re getting the nutrients you require for your fitness or sport activities?

This is still a common question: can vegetarians perform as well as their carnivorous counterparts in physical competition?

To meet your nutrient needs and improve athletic performance, use these suggestions:

Meeting Calorie Needs

To best meet energy demands, consume six to eight small meals daily. These feedings supply a steady energy source and are easier on the body’s digestive system than three large meals per day.