This advanced weight gainer has 1230 calories with 50 grams of protein to promote some REAL MASS.* Also, it comes loaded with the durable & patent protected Ganeden BC30 (Bacilluscoagulans GBI-30, 6086) probiotic to help support digestive & immune health.* This advanced probiotic is strong enough to survive manufacturing, doesn't require refrigeration, is shelf stable, & survives stomach acids to deliver beneficial bacteria to your digestive system all the while having REAL research that suggests those claims.* When it comes to putting on quality mass the facts don't lie. You need high calories & REAL MASS has just what you need to pack on the pounds & support your immune & digestive health.* Gaspari Nutrition keeps it real.