Ashwagandha! This ancient medicinal herb could be helpful for promoting muscle strength. It comes from the Ginseng family which known for positive effects in the herbal medicine community. Ashwagandha has long been used in Ayurvedic medicine to increase energy, improve overall health and reduce inflammation, pain and anxiety. It is essentially popular now because of our stressful western culture. During stressful moments, the cortisol levels in your body become elevated. Ashwagandha can help normalise cortisol levels, but also reduced inflammation.
The Ashwagandha Ginseng Herb as also gone through some studies towards muscle strength. The studies reports that ashwagandha supplementation is associated with significant increases in muscle mass and strength and suggests that ashwagandha supplementation may be useful in conjunction with a resistance training program. One study was on young men who had ashwagandha root extract before weight training. Compared to the placebo subjects, the group treated with ashwagandha had significantly greater increases in muscle strength, but also significantly greater muscle size increase on the arms. It would always be great with more studies on the subject.
https://health.clevelandclinic.org/what-is-ashwagandha/
https://www.webmd.com/vitamins/ai/ingredientmono-953/ashwagandha
https://pubmed.ncbi.nlm.nih.gov/26609282/