This investigation examined the possible benefits or problems of high carbohydrate, low fat (high CHO) & low carbohydrate, high protein (low CHO) diets on row ergometry training and performance. The body’s metabolism changes with different fuel sources, but the changes in metabolism during exercise stress, while on the low CHO, high protein diet still remains unclear. The study included 18 fit, non-smoking males aged 18-40 from Ohio University. During the 7 week study these subjects were asked to consume a high CHO (n =10) or low CHO (n = 8) diet and follow the same row training schedule. Anthropometric, strength & endurance, and other performance changes were collected pre- and post-training. Diet and performance data were also collected during the 7 weeks of training. It was hypothesized that there would be a difference in anthropometric measurements and performance in the low CHO group compared to the high CHO group. All statistical analysis was performed on SPSS Advanced Models 12.0 for Windows. The results showed no significant difference (p < 0.05) between the two groups in anthropometric, performance, and training variables. It was conclude low CHO diets do not provide any added benefits over a high CHO diet.