Temporarily, sub 1100 can work very well for losing weight. You want resistance training and very high protein to avoid muscle loss. This is better known as th

Temporarily, sub 1100 can work very well for losing weight. You want resistance training and very high protein to avoid muscle loss. This is better known as the Protein-Sparing Modified Fast (PSMF). Still an intense diet — after all it's an intelligent way to crash diet. Long-term... not such a good idea unless you are obese.