Leaf & Herb · Root/Rhizome
Ashwagandha Tea
Strong Evidencebotanical2 PubMed Studies
Hermetica Superfood Encyclopedia
A calming adaptogenic herb that helps your body manage stress, improve sleep, and boost energy.
Withania somnifera, commonly known as Ashwagandha, is a revered adaptogenic herb native to the arid regions of India, North Africa, and the Middle East. It has been utilized for over 3,000 years in Ayurvedic medicine. As a tea, it offers a gentle yet effective way to access its stress-balancing and vitality-enhancing properties.
Numerous randomized clinical trials and meta-analyses support Ashwagandha's efficacy in reducing anxiety, improving energy, enhancing sleep quality, and lowering cortisol levels. Research also indicates benefits for testosterone levels and cognitive function, establishing it as one of the most studied adaptogens in integrative medicine.
- Phytochemicals/Bioactives: Withanolides (adaptogenic, anti-inflammatory, antioxidant), Alkaloids (immune modulation), Saponins (cognitive & cardiovascular support) - Minerals: Iron, Calcium, Magnesium (trace amounts, supporting oxygen transport, bone health, and muscle function) - Amino Acids: (support neurotransmitter balance and stress adaptation)
Ashwagandha's primary bioactive compounds, the withanolides (particularly withanoside IV and withanoside VI), exert their effects through modulation of the hypothalamic-pituitary-adrenal (HPA) axis, specifically by inhibiting cortisol synthesis and regulating glucocorticoid receptor sensitivity. These steroidal lactones also enhance GABAergic signaling in the brain, contributing to anxiolytic effects, while simultaneously supporting mitochondrial biogenesis through activation of PGC-1α pathways. Additional mechanisms include acetylcholine esterase inhibition for cognitive benefits and modulation of inflammatory cytokines (TNF-α, IL-6) through NF-κB pathway suppression.
Multiple randomized controlled trials demonstrate Ashwagandha's efficacy, with a 2019 systematic review of 12 RCTs showing significant reductions in perceived stress scores and morning cortisol levels (ranging from 14.5% to 27.9% cortisol reduction across studies). A notable 8-week RCT (n=64) using 300mg twice daily of standardized root extract showed 30% reduction in cortisol levels and significant improvements in anxiety scores compared to placebo. Meta-analyses support benefits for sleep quality, physical performance (increased muscle mass and strength), and testosterone levels in men (10-22% increases in clinical trials). The evidence is strongest for stress reduction and cortisol modulation, with emerging but promising data for cognitive and physical performance enhancement.
Ashwagandha is generally well-tolerated in clinical trials, with mild drowsiness and gastrointestinal upset being the most commonly reported side effects at therapeutic doses (300-600mg daily). Significant drug interactions include potentiation of immunosuppressant medications (cyclosporine, tacrolimus), blood glucose-lowering effects that may enhance antidiabetic medications, and potential additive sedation with CNS depressants. Contraindications include pregnancy and breastfeeding (due to potential abortifacient properties), active autoimmune conditions (may stimulate immune system), and perioperative use (discontinue 2 weeks before surgery due to potential effects on blood sugar and blood pressure). Individuals with thyroid disorders should use cautiously as ashwagandha may increase thyroid hormone levels.
