Adults with stress or mild generalized anxiety seeking daytime calm without drowsiness.
Form: standardized oral lavender oil capsule
Dose: 80 mg/day
Morning with food
8–10 weeks, then reassess
Why: Meta-analyses show clinically meaningful reductions in anxiety symptoms in subthreshold anxiety/MADD/GAD.
Form: pure L-theanine
Dose: 200–400 mg/day
Morning and/or 60 min before stressful tasks
PRN or daily for 4–8 weeks
Why: Systematic reviews and RCTs show acute improvements in calm attention; can smooth caffeine effects.
Dose: 200–350 mg elemental/day
Evening with food
Notes: Common shortfall nutrient; small trials suggest benefit for stress/sleep quality.