Table 1: Sociodemographic and lifestyle characteristics of all participants and of users of nutritional supplements. No missing data.

Percentage of total population ( 𝑛 = 5 1 2 )Percentage of supplement users ( 𝑛 = 1 8 6 )P

Gender
 Male60.972.0<0.001
 Female39.128.0

Age group (years)
 20–3063.764.00.936
 30–4026.626.9
 40–509.89.1

Education
 Brevet10.29.10.615
 Lebanese Bachelor13.710.8
 Technical degree5.56.5
 Bachelor56.859.1
 Masters or above12.312.4
 Others1.62.2

Alcohol intake
 No65.660.80.080
 Yes34.439.2

Smoking status
 No61.759.10.500
 Current31.334.4
 Former7.06.5

Disease history
 No92.890.30.106
 Yes7.29.7

Total time of exercise
 <1 month3.91.60.005
 1–6 months11.510.2
 7 months–1 year9.24.8
 >1 year75.483.3

Frequency of exercise
 <3 times/week16.814.00.099
 3–5 times/week64.162.4
 >5 times/week19.123.7

Total time of daily exercise
 <1 hour/day18.016.70.673
 1-2 hours/day68.671.0
 >2 hours/day13.512.4