Table 4. Most commonly prescribed individual antioxidants for the treatment of male infertility.
| Antioxidants | Self-reported responses |
|---|---|
| Zinc | 737 (70.9) |
| Vitamin E | 717 (69.0) |
| L-carnitine | 706 (67.9) |
| Co-enzyme Q10 | 675 (65.0) |
| Vitamin C | 604 (58.1) |
| Selenium | 566 (54.5) |
| Folic acid (vitamin B9) | 437 (42.1) |
| L-arginine | 422 (40.6) |
| Vitamin D | 309 (29.8) |
| N-acetyl cysteine | 271 (26.1) |
| Combination of vitamins with carnitine | 266 (25.6) |
| Vitamin A or relevant carotenes | 242 (23.3) |
| Combination of vitamins C and E | 221 (21.3) |
| Lycopene | 220 (21.2) |
| Methylcobalamin (vitamin B12) | 161 (15.5) |
| Riboflavin (vitamin B2) | 149 (14.3) |
| Thiamine (vitamin B1) | 147 (14.1) |
| Glutathione | 140 (13.5) |
| Acetyl carnitine | 138 (13.3) |
| Herbal antioxidants or products | 128 (12.3) |
| Pentoxifylline | 128 (12.3) |
| Pyridoxal-5-phosphate (vitamin B6) | 119 (11.4) |
| Methylfolate | 104 (10.0) |
| Biotin | 102 (9.8) |
| Alpha-lipoic acid | 79 (7.6) |
| Docosahexanoic acid (DHA) | 77 (7.4) |
| Pantothenic acid (vitamin B5) | 67 (6.4) |
| Vitamin B3 (niagen) | 61 (5.9) |
| Melatonin | 53 (5.1) |
| L-tyrosine | 48 (4.6) |
| Other | 41 (3.9) |
| Vitamin K2 | 29 (2.8) |
| Chelated copper | 22 (2.1) |
| Para-aminobenzoic acid (PABA) | 22 (2.1) |
| Methylsulfonylmethane (MSM) | 17 (1.6) |
| Phosphatidylcholine | 15 (1.4) |
Values are presented as number (%*).
*Percentage was calculated based on the total number of participants (n=1,039) who answered this multiple option question.