Low calorie diets leave you tired, lethargic and unable to sustain high levels of activity or intense workouts. Dr. Lawrence Lamb, author of "The Weighting Game: The truth about weight control" points out that "The first sign of under nutrition is the loss of energy and the inability to sustain prolonged physical work. There is a direct relationship between calories consumed and the physical work a person can do."
If you have no energy to work out, you're going to feel lousy and seriously compromise your results. The ability to train hard aerobically and with weights is critical for your long-term success at fat loss.
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