Will i lose weight if i lose 500 calories a day?

I''m 21 year old boy & i consume 900-1000 calories per day and burn 500 calories in two intervals first in the morning between 7-8 for 50 min(300 calories) and between 6-6:35 pm (200 calories).

i warm up for 5 min then i run at 10km/hr for a min and walk at 6km/hr for 2min, i do 8 intervals in the morning and 6 during night will i lose weight and fat or not?
ON TREADMILL !

How to Lose Weight?

Recommended Answer:
yes you''ll lose weight pretty fast(over 2lbs a week) but I''d go for at least 1500-1800(this includes the calories you burned) a day, if you keep going the way you are every day then don''t expect to keep or gain muscle anytime soon

• Yes you will but remember to eat healthy :)
• Why are you eating so little? You are a 21 year old man, not boy. You need more food in your body?!
• try this tool
  
  http://caloriecount.about.com/tools/calories-goal