This is the supplement I take for my immune health, and the best part it protects my gut:

• FREE FORM L-GLUTAMINE: NOW Brand’s premium L-Glutamine 500 mg amino acid supplement.
• EASY TO TAKE ON THE GO: No need to mix any powder. Easy to take these capsules when at the gym or at work or over lunch. BENEFITS FOR MEN AND WOMEN: Glutamin supports immune function* & nitrogen transporter*. Benefits gut health*.
• BETTER FOR YOU: Non-GMO, Vegetarian, Vegan.
• GOING GREEN: We are planting 1 tree for every 20 bottles sold of this 300-count product, up to 5,000 trees per year. Help us make the world a greener place.
• TRUSTED QUALITY FOR OVER 50 YEARS: Family owned since 1968. Based in the heart of America on solid Midwestern values.