Hello, Withdrawal symptoms of valium and benzodiazepine may cause different symptoms. Long term effect can be a difference in weight. You are presently experiencing muscle loss. People going through benzodiazepine withdrawal are suggested to stay connected with the detox center the manage the symptoms for a successful withdrawal and management of the developing symptoms. You should get connected with a Physiotherapist for Strength training. It will help to prevent muscle loss while increasing muscle mass. In the meantime, you should take high protein diet. Take also vegetarian protein (almonds, walnuts, chia seeds, pumpkin seeds, flaxseeds, etc.) along with other forms of protein available. Balance it with whole cereals, fruits and vegetables. Stay away from addictions if any. Avoid stress (emotional nd physical), stay well hydrated and take quality sleep. You are suggested to get a complete medical check up done as chronic diseases may also cause muscle and weight loss. Get all tests and investigations done to detect the pathology & get treated at the earliest. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician