Yes, in fact there are two research papers written on this topic. Corrigan & Kauslaskas published a paper on supplement use in swimmers during the Olympic Games in Sydney 2000. The results show that 89% of swimmers declared a substance on their doping control forms. Swimming was the second highest of all of the Olympic disciplines for vitamin ingestion. The group of athletes that had higher vitamin ingestion was the Athletics athletes.
The second study is from the FINA World Championships in Barcelona in 2003 by Pipe, Corrigan and Mountjoy. The following table shows the use of supplements in aquatics:
| Substance Type | Number of athletes | Percentage of total |
| Vitamins | 176 | 57% |
| Mineral | 51 | 17% |
| Supplement | 80 | 26% |
| Herbal preparation | 34 | 11% |
| NSAID (anti-inflammatory) | 52 | 7% |
| Asthma Medication | 66 | 21% |
| Oral Contraceptive | 20 | 13% |
The next table shows the comparison from Sydney 2000 to Barcelona 2003 which illustrates a general decrease in overall use:
| Substance Type | Sydney 2000 | Barcelona 2003 |
| No = 345 | No = 308 | |
| Vitamins | 316 | 176 |
| Minerals | 94 | 51 |
| Supplements | 295 | 80 |
| Incl. Creatine | 74 | 35 |
| Asthma | 105 | 66 |
| NSAID | 117 | 52 |
| Herbs | 63 | 80 |
| Oral Contraceptive | 89 | 20 |
Read the full article 'Sport Supplements in Swimming'