Table 3 Selected nutraceutical supplements with their associated benefits summarized
From: Functional food: complementary to fight against COVID-19
Nutraceutical supplement | Source (s) rich in the nutraceutical compound | Functions | References |
|---|---|---|---|
Quercetin | Onion, red grapes, broccoli, citrus fruits | Protects blood vessels from oxidative stress and low-density lipoprotein | |
Omega-3 fatty acids | Fish | Treats eye disorders such as age-related macular degeneration (AMD); prevents heart damage in diabetic patients | [51] |
Cod liver oil | Cod liver | Reduces symptoms of cardiovascular-related conditions | |
Ginseng | Panax ginseng, Panax quinquefolius | Protects against infections; delays osteoporosis; prevents and treats autoimmune diseases | [54] |
Lutein | Kale, spinach, corn, eggs | Combats oxidative stress; delays Alzheimer's disease; treats visual disorders such as AMD |