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. 2020 Sep 1;28(11):1326–1332. doi: 10.1016/j.jsps.2020.08.023

Table 4.

Belief about the use of the herbal products and/or food supplements as protective measure.

Variable Frequency (%)
Do you use herbal products or supplements during the period of the pandemic in order to protect you from the disease? (n = 5,245)
Yes 783 (14.9)
No 4,084 (77.9)
I used it for a while and then stopped it 378 (7.2)
If yes, who suggested you take a nutritional/herbal supplement? (n = 944)
Dietician/physician/pharmacist/nurse/health practitioner 223 (23.6)
Social media and other websites 372 (39.4)
Recommendation from friend or relative 349 (37.0)
If yes, where did you get it?
Herbal product shop 293 (31.0)
Pharmacy 226 (23.9)
Home 354 (37.5)
Internet 71 (0.07)
What type of dietary supplement did you use before/use now during the pandemic? (You can choose more than one answer) (n = 552)
Vitamin C 521 (94.4)
Royal Jelly 31 (5.6)
Beliefs about the use of the herbal products and/or food supplements as protective measure
Yes No Maybe I don’t know
Do you think that drinking turmeric tea helps increase immunity and reduce the chance of developing COVID-19? 13.3% 19.6% 25.1% 42.0%
Do you think ginger tea helps to increase the immunity and reduce the chance of developing COVID-19? 19.5% 17.5% 33.0% 30.0%
Do you think that eating garlic helps to increase the immunity and reduce the chance of developing COVID-19? 34.4% 14.8% 32.6% 18.3%
Do you think that eating onions (or onion peel) helps to increase the immunity and reduce the chance of developing COVID-19? 20.6% 20.1% 28.8% 30.5%
Do you think that eating fish oil known as omega-3 helps to increase the immunity and reduce the chance of developing COVID-19? 9.5% 19.8% 25.6% 45.1%
Do you think that taking ginseng extract tablets help to increase the immunity and protect us from corona infection? 3.4% 20.9% 16.5% 59.2%
Do you think that consumption of vitamin C found in citrus has a role in treating or reducing the chances of developing COVID-19? 29.3% 13.7% 33.4% 23.5%
Do you think that vinegar plays a role in treating or protecting against the COVID-19? 5.9% 29.3% 18.7% 46.1%
Do you think salted water plays a role in treating or protecting against the COVID-19? 10.0% 33.4% 21.4% 35.2%
Do you think that applying sesame oil on the body protect from COVID-19? 1.2% 51.6% 6.9% 40.3%
Do you think that consuming of nutritional and herbal supplements prevents the spread of COVID-19 more than social distance? 15.7% 23.6% 32.2% 28.5%
Do you think that vitamins and herbal supplements treat/reduce the incidence of COVID-19? 4.4% 57.3% 14.0% 24.3%