Abstract Summary
Objective
To assess whether ashwagandha (Withania somnifera) supports weight loss and improved body composition through stress reduction, hormonal modulation, and metabolic regulation.
Context
Ashwagandha is an adaptogenic herb widely used in Ayurvedic medicine to enhance stress resilience. Increasing evidence links chronic stress and elevated cortisol to weight gain, particularly abdominal fat. This has led to growing scientific interest in ashwagandha as a complementary intervention for stress-related weight management rather than as a direct fat-burning agent.
Methods Used
Approach
A focused review of randomized controlled trials, observational studies, and mechanistic research was conducted to evaluate the effects of ashwagandha supplementation on weight-related outcomes and metabolic health.
Data Collection
Key measures included body weight, BMI, waist circumference, perceived stress scores, serum cortisol, lipid profiles, fasting glucose, and appetite-related behaviors. Data were collected from peer-reviewed sources including PubMed and ScienceDirect.
Researchers' Summary of Findings
Impact on Health
Evidence suggests that ashwagandha may contribute to modest reductions in body weight, BMI, and waist circumference, particularly in individuals with elevated stress levels. These changes are consistently accompanied by significant reductions in cortisol and perceived stress. Some studies also report improved sleep quality and reduced emotional eating, which may indirectly support weight control.
Health Implications
Ashwagandha’s primary weight-related benefit appears to stem from its ability to lower cortisol and improve stress response, factors known to influence fat storage and metabolic efficiency. It is generally well tolerated, with mild gastrointestinal discomfort reported in some users. Ashwagandha should be viewed as an adjunct to diet and lifestyle modification rather than a standalone weight loss treatment.
Sustainability
Ashwagandha is a hardy, drought-resistant crop with low environmental impact. Its use supports sustainable, plant-based approaches to metabolic health and aligns with preventative wellness strategies.
DOI
10.1016/j.jep.2023.116512
