Let's do the math. 30 lbs * 3500 (calories / lb) / 60 days = 1750 calories a day. Last time I checked, 180 lb average height american males in their late teens / early 20's only burn about 1800-1900 calories a day. 1750 calorie deficit a day. What, did this guy only eat 100 calories a day for 2 months? Meanwhile the TDEE for a 300 lb male is about 4400. Conclusion: Yeah he probably went from 330 to 300