Evidence Level
Tart cherry is a natural intervention supported by robust evidence for improving sleep quality and addressing related health concerns. Howatson et al. (2012) demonstrated that tart cherry juice significantly increased sleep time by 25 minutes, improved sleep efficiency by 5-6%, and elevated melatonin metabolites in a well-designed crossover RCT. This was further corroborated by Pigeon et al. (2010), who found benefits in older adults with chronic insomnia, and Losso et al. (2018), who reported an 84-minute increase in sleep time in a pilot study of older adults with insomnia.
The dual mechanism of tart cherry—its natural melatonin content and anti-inflammatory proanthocyanidins—contributes to its unique role in sleep supplementation. The anti-inflammatory properties are particularly relevant for age-related sleep disruption, where chronic low-grade inflammation plays a significant role (Losso et al., 2018). Additionally, studies such as Gholami et al. (2022) highlight tart cherry's ability to reduce plasma CRP levels, further supporting its anti-inflammatory benefits.
Beyond sleep, tart cherry has shown promise in improving cardiovascular health and recovery from exercise-induced muscle damage. A systematic review by Daab et al. (2026) found that tart cherry juice significantly improved MVC recovery and reduced CRP levels after EIMD in athletes. Furthermore, Norouzzadeh et al. (2024) reported that tart cherry supplementation significantly reduced total cholesterol, triglycerides, and LDL cholesterol in unhealthy populations.
Overall, tart cherry's multifaceted benefits make it a valuable supplement for addressing sleep disturbances, inflammation, and cardiovascular health.