Glycine isn't an "essential amino acid".
But here's why it's one of the most important in the body:
• Creatine synthesis
• Collagen synthesis
• Glutathione production (master antioxidant)
• Neurotransmitter synthesis (GABA, dopamine, & serotonin)
• Regulates bile production
• Heals the gut
• Reduces inflammation/oxidative stress
• Lowers blood pressure
So yea...
You should be drinking your bone broth.