Table 10.

Thematic areas of research from keyword co-occurrence analysis.

Cluster Title	#Keywords	Top Keywords
Alternative and Traditional Medicine	18	Alternative medicine, ayurvedic medicine, cancer, complementary and alternative medicine, complementary medicine, diabetes mellitus, herbal medicine, herbs, homeopathy, India, integrative medicine, medicinal plants, natural products, Siddha, toxicity, traditional medicine, yoga.
Bioactive Compounds and Biological Activities	13	Anti-inflammatory, anticancer, antidiabetic, antimicrobial, antioxidant, apoptosis, curcumin, diabetes, flavonoids, inflammation, lipid peroxidation, oxidative stress, and phytochemicals.
Analytical Techniques and Herbal Standardization	10	Antioxidant activity, gallic acid, HPLC, HPTLC, pharmacognosy, pharmacology, phytochemical, phytochemistry, standardization.
Herbal Medicines and Immunomodulation	7	SARS-CoV-2, Withania somnifera, COVID-19, immunomodulation, rasayana, ashwagandha, Tinospora cordifolia,