You are 23 210 lbs and started eating 600 calories a day by eating salad and V8 juice since there is vitamins in V8 will i still lose weight?

Having only 600 calories a day will be a shock for your system, anything under 900 calories is classed as a starvation diet. You will not feel great, believe me. Also, having vitamins won't change the fact that your body will be lacking calories, having too little little calories will eventually cause you to gain more weight as it will slow down you metabolism.