Are You Wondering “Does Ryze Mushroom Coffee Contain Oats?” The answer is yes. The coffee contains slow-burning oats as well as six powerful mushrooms to provide brain, gut and immune support: Lion’s Mane is highly sought after among biohackers for focus and nerve regeneration while Reishi and Fungus Among Us provide more complete immunity benefits compared to Ryze. However, its low dosage per mushroom limits how you may benefit; I recommend taking Reishi Plus or Fungus Among Us as supplements instead; although RYZE is made in America organically and gluten-free making it ideal as standalone option or by adding collagen peptides, Greek Yogure or Chia seeds to amp up energy levels!