The road. It is these enzymes that define a formula as designed for "real world" diets. Real World Benefits As Dr. Howell said in his book on bio x4 enzyme nutrition, "A person's life span is directly related to the exhaustion of their enzyme potential. And the use of food enzymes decreases that rate of exhaustion, and thus, results in a longer, healthier, and more vital life."12 But what does this mean in …