Figure 3From: A soy-based phosphatidylserine/ phosphatidic acid complex (PAS) normalizes the stress reactivity of hypothalamus-pituitary-adrenal-axis in chronically stressed male subjects: a randomized, placebo-controlled study Saliva cortisol response to acute stress; *p < 0.05. PAS 200 group: 200 mg PA & 200 mg PS per day; PAS 400 group: 400 mg PA & 400 mg PS per day. Back to article page