Study under review: Vitamin C and E supplementation alters protein signalling after a strength training session, but not muscle growth during 10 weeks of training
Antioxidants are often touted as miracle cure-all compounds, and two of the most commonly supplemented antioxidants, vitamins C and E, are included in a wide array of supplements and multivitamins. Vitamin C supplementation is especially common during the cold season, although evidence suggests this kind of supplementation is mostly beneficial for special populations, like people engaging in extreme physical exercise. However, there is a growing body of evidence showing that vitamin C and E supplementation can negatively affect performance in competitive and recreational athletes alike.
Much of the previous research on antioxidant supplementation and performance involved some type of endurance exercise, where results have suggested that antioxidants may actually negate some of the healthy adaptations to training. Training stresses muscles at a cellular level, involving pathways that utilize free radicals, and bigger and stronger muscles are partially a result of this stress. Because the exact effects of antioxidant supplementation on weight training are largely unknown, a recent trial sought to assess the effects of vitamin C and E supplementation on strength training adaptations in young, healthy individuals.
Other Articles in Issue #02 (December 2014)
- Interview: Bojan Kostevski, MD
Resveratrol and high-intensity interval training
Resveratrol supplementation does not augment performance adaptations or fibre-type–specific responses to high-intensity interval training in humans.
Diet: The whole is greater than the sum of its parts
Discussing the benefits of food (not just supplements) and diet on health, while examining our diet as a whole.
Of mice and guts (and exercise performance)
Effects of intestinal microbiota on exercise performance in mice.
Quantifying the effect of water intake on mood
Effect of changes in water intake on mood of high and lower water drinkers.
Don’t forget the cocoa
Enhancing dentate gyrus function with dietary flavanols improves cognition in older adults. Research shows that chocolate provides a variety of health benefits — many related to cardiovascular health.
Effects of omega-3s on brain function from infancy to old age
Effect of n-3 PUFA supplementation on cognitive function throughout the lifespan from infancy to old age: a systematic review and meta-analysis of randomized controlled trials.
Gut bugs and fiber: A novel way to keep dyslipidemia at bay?
A systematic review and meta-analysis of the prebiotics and synbiotics effects on glycaemia, insulin concentrations and lipid parameters in adult patients with overweight or obesity.
Whey and guar gum: unlikely heroes for people with diabetes
Effect of a lose dose whey/guar preload on glycemic control in people with type 2 diabetes- a randomized controlled trial.
Interview: Shou-Ching Jaminet, Ph.D., Cancer Researcher
Shou-Ching is a molecular biologist and cancer researcher at Beth Israel Deaconess Medical Center and Harvard Medical School, and Director of BIDMC’s Multi-Gene Transcriptional Profiling Core.