‍

‍

Ashwaghanda

Cheah et al. Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis. PLoS One 2021.  

‍

L-theanine

Bulman et al. The Effects of L-Theanine Supplementation on Quality of Sleep: A Systematic Review. Proceedings 2023.

‍

Melatonin

Brzezinski et al. Effects of exogenous melatonin on sleep: a meta-analysis. Sleep Medicine Reviews 2005.

‍

Costello et al. The effectiveness of melatonin for promoting healthy sleep: a rapid evidence assessment of the literature. Nutrition Journal 2014.  

‍

Cruz-Sanabria et al. Optimizing the Time and Dose of Melatonin as a Sleep-Promoting Drug: A Systematic Review of Randomized Controlled Trials and Dose−Response Meta-Analysis. Journal of Pineal Research 2024.

‍

Fatemeh et al. Effect of melatonin supplementation on sleep quality: a systematic review and meta-analysis of randomized controlled trials. Journal of Neurology 2022.

‍

Magnesium

Boyle et al. The Effects of Magnesium Supplementation on Subjective Anxiety and Stress—A Systematic Review. Nutrients 2017.  

‍

Mah et al. Oral magnesium supplementation for insomnia in older adults: a Systematic Review & Meta-Analysis. BMC Complementary Medicine and Therapies 2021.  

‍

Supplement Usage

Council for Responsible Nutrition. CRN Survey Shows Consistent Supplement Usage with Increase of Specialty Product Use Over Time. 2024 CRN Consumer Survey on Dietary Supplements.

‍

‍