Background: This study’s purpose was to evaluate the relationship between dance training volume, body composition, and habitual diet in female collegiate dancers. Methods: Thirty-three female collegiate dancers from three dance programs (20.4 ± 1.05 yrs.; 165.4 ± 11.3 cm, BMI 21.3 ± 3.4 kg/m²) participated in “The Intercollegiate Artistic Athlete Research Assessment (TIAARA)” study. We assessed dance training volume, body composition, and habitual diet. Data were analyzed using descriptive statistics (means ± SD). Two-sample t-tests were conducted to compare reported intake values versus sports nutrition recommendations. Two-tailed Pearson correlations (r) were computed for body composition and dietary intake (p < 0.05). Results: Collegiate dancers were enrolled in 16 ± 2.09 semester credits, with 7.7 ± 3.8 credits as dance movement courses and an additional 3.0 ± 1.5 h/week of rehearsal time. Body composition assessments included fat mass (24.4 ± 6.8%), lean mass (LM) (42.4 ± 10.1 kg), and total body water (32.6 ± 4.6 L). Habitual diets reflected a low-calorie diet (1399 ± 648 kcal/d), with ~20% of dancers consuming a very low-calorie diet (≤1000 kcal/d). Dancers reported under-consuming dietary protein (54.3 ± 26.2 g) and carbohydrate (171.8 ± 77.8 g). LM was positively correlated with daily total energy (r = 0.333), fat (r = 0.37), protein (r = 0.349), and leucine intake (r = 0.352). Conclusions: Our findings emphasize the positive effect of adequate nutritional quantity and quality on body composition in female collegiate dancers.

Collegiate dancers face high training loads, aesthetic pressures, and limited access to nutritional resources, elevating their risk for low energy intake and micronutrient insufficiency. Although inadequate micronutrient intake has been documented, prior studies are largely limited to single sites, ballet-focused programs, or short assessment periods, making findings difficult to generalize and leaving long-term habitual intake across diverse collegiate dance styles poorly understood. Given the elevated risk for low energy intake and nutrient inadequacy in this population, further investigation is warranted. This study aimed to evaluate habitual micronutrient intake in female collegiate dancers relative to the Recommended Dietary Allowance (RDA) and sports nutrition guidelines, and to identify dietary predictors of micronutrient adequacy. Thirty female collegiate dancers from three U.S. university dance programs (mean age = 20.4 years; BMI = 21.1 kg/m²) completed the Diet History Questionnaire III. Total energy and micronutrient intake from food and supplements were quantified for calcium, iron, folate, omega‑3 fatty acids, and vitamins B12, C, and D. Adequacy relative to the RDA/Adequate Intake (AI) was determined for each nutrient. Fisher's exact tests compared adequacy between supplement users and non‑users. Logistic regression models evaluated predictors of meeting the RDA/AI, including total energy intake (per 100 kcal), supplement use, and relevant food‑group intake. Most dancers consumed below the RDA/AI for calcium (20/30; 67%), iron (24/30; 80%), vitamin D (20/29; 69%), omega‑3 fatty acids (19/30; 63%), and folate (17/29; 59%). Conversely, a majority met the RDA for vitamin B12 (17/26; 65%) and vitamin C (20/30; 67%). When compared with sports nutrition recommendations, an even greater proportion fell short for calcium (29/30), omega‑3 fatty acids (30/30), vitamin D (22/29), and vitamin C (14/30). Supplement use was significantly associated with meeting the RDA for iron (75% vs. 11.5%; p = 0.018; OR = 19.14), folate (87.5% vs. 23.8%; p = 0.003; OR = 19.61), vitamin B12 (100% vs. 47.1%; p = 0.009; OR = Inf), vitamin C (94.1% vs. 46.2%; p = 0.009; OR = 16.68), and vitamin D (56.3% vs. 0%; p = 0.001; OR = Inf). Total energy intake significantly predicted adequacy for calcium (p = 0.020; OR = 1.27), iron (p = 0.0002; OR = 1.69), omega‑3 fatty acids (p = 0.007; OR = 1.27), folate (p = 0.004; OR = 1.57), and vitamin B12 (p = 0.004; OR = 1.39), but not vitamin C or D. Food‑group intake showed limited predictive value; only red/orange vegetable intake predicted vitamin C adequacy. Inadequate micronutrient intake was highly prevalent among collegiate dancers, particularly for calcium, iron, vitamin D, omega‑3 fatty acids, and folate. Supplement use improved adequacy for several nutrients, yet observed intake distributions suggest supplementation often compensates for, but not necessarily corrects, underlying dietary shortfalls. Total energy intake emerged as a consistent predictor of adequacy across multiple nutrients, underscoring the central role of sufficient energy intake in supporting micronutrient exposure. Even dancers meeting the RDA frequently fell below athlete‑specific recommendations, highlighting the need for targeted strategies that address both energy intake and micronutrient support within collegiate dance programs.