Application of deuterium oxide (D2O) to metabolic research: just D2O it? Depends just how you D2O it!

to the editor: the recent article by Lambert et al. ([4][1]) reports the effects of aquatic vs. land-based aerobic treadmill exercise combined with resistance exercise in the context of muscle anabolism. These authors quantified muscle protein synthesis (MPS) over 24 h using a method that has