Hi John,

More power to you to keep up physical activity levels. Most suffer side effects that will sideline you through rads and some time afterwards.

Besides having the energy to do exercise, particularly of the calorie consuming variety, you have to increase your caloric intake over what the resting body needs.

Many struggle getting sufficient calories to maintain weight much less have the luxury of extra calories to account for the exercising.

If you struggle with weight loss, the strenuous exercise needs to go first; priority is to keep nourished and hydrated.