The objective of this study was to assess the frequency of usage and quantity of nutritional intake by Saudi professional soccer players. The survey was divided into four categories: use of nutritional intake, the reason for consumption of nutritional intake, personal beliefs about nutritional intake, and behavior. The questionnaires were distributed to players from four professional soccer teams residing in Saudi Arabia: Club A was from Riyadh, Clubs B and C were from Jeddah, and Club D was from Dammam. The results showed that the mean energy intakes for the teams were: Club A, 3855 kcal/day; Club B, 3690 kcal/day; Club C, 3533 kcal/day; and Club D, 3421 kcal/day. No significant differences in protein and fat intake were identified between players from the four teams. In addition, a high percentage of athletes (96%) were found to use different supplements during the season; 41.67% (n = 60) reported that supplements were used to improve performance and 30.56% (n = 44) used supplements for health as the mean reason for use. In total, 109 (75.69%), 110 (76.39%), and 94 (68.06%) athletes were consuming sports drinks, buffered vitamin C, and calcium, respectively. Meanwhile, the least consumed supplements were vitamin E complex (n = 41; 28.47%) and energy drinks (n = 30; 20.83%). A majority of athletes indicated that their use of supplements was to improve their health and performance. Based on this study, it is recommended that soccer players receive education about nutrition at an early stage to promote healthier dietary practices, which can help players to support their careers.