Pork belly is about 33 percent fat, so a 200g order starts at 660 calories raw. Some of that drips into the grill tray, which is why the grilled number sits closer to 630. The problem is nobody eats one order. Two people at a samgyeopsal restaurant usually put away 3 servings between them, which is 950 calories each before the rice, the doenjang jjigae and the drinks.
The wrap is nearly free. A lettuce leaf, a perilla leaf, a clove of grilled garlic and a smear of ssamjang come to about 20 calories per ssam. Eating 10 wraps costs you 200 calories of vegetables and sauce, and it slows you down, which is the real benefit. The bowl of rice (300 calories) and the fried rice at the end (about 450) are where the meal gets out of hand.
At 15,000 to 18,000 won per 1인분 in Seoul now, samgyeopsal is not cheap protein either. 36g of protein for 630 calories is a poor ratio compared with the 목살 (pork neck) on the same menu, which gives you about 45g protein for 430 calories per 200g.