Which sub group of athletes are most likely to be at risk of micronutrient deficiencies?[Fill in the blank]

Question

BlackTom AI · Accepted Answer

Females in aesthetic and weight‑category sports are most likely to be at risk of micronutrient deficiencies because of the interaction between higher physiological micronutrient needs and frequent chronic dietary restriction.

1) Relevant knowledge points and concepts
- Micronutrient status depends on dietary intake, absorption, losses, and physiological requirements. Key at‑risk nutrients for athletes include iron, calcium, vitamin D, B12, zinc and some B vitamins.  
- Females have higher iron requirements because of menstrual blood losses.  
- Sports that emphasize leanness (aesthetic sports like gymnastics, ballet) or strict weight classes (wrestling, rowing, combat sports) encourage energy restriction, rapid weight loss and disordered eating, reducing intake of micronutrient‑rich foods.  
- Relative Energy Deficiency in Sport (RED‑S) links low energy availability to impaired bone health, menstrual dysfunction and metabolic disturbances that coincide with micronutrient shortfalls.

2) Step‑by‑step reasoning
- Step 1: Compare sex differences — females generally require more dietary iron and are more susceptible to iron deficiency anemia than males.  
- Step 2: Compare sport types — aesthetic and weight‑category sports commonly involve intentional calorie restriction or weight cycling, increasing the likelihood of chronic low intake of vitamins/minerals.  
- Step 3: Combine sex + sport risk — female athletes in these sports therefore face both increased need (menstruation) and reduced intake (dieting), so risk is highest.

3) Calculations / intermediate steps
- No numeric calculation is required; the conclusion follows from combining qualitative risk factors (increased requirement + decreased intake = greater deficiency risk).

4) Why the correct answer is correct
Because females in aesthetic and weight‑category sports frequently practice energy and food restriction while having greater iron and calcium needs, they are the subgroup most prone to micronutrient deficiencies and related consequences (anemia, low bone density, impaired performance).

5) Why other options are less correct
- a: Males in these sports may restrict intake, but males have lower iron requirements and lower prevalence of dieting/disordered eating than females.  
- c: Vegetarian males in endurance sports can be at risk (e.g., low iron, B12) but overall risk is lower than dieting females because males lack menstrual losses and endurance alone less often drives extreme restriction.  
- d: Vegetarian females in endurance sports are at some risk, but endurance without the aesthetic/weight pressure generally produces less chronic energy restriction than aesthetic/weight sports, so their overall risk is lower.

Conclusion: The best answer is b. Females participating in aesthetic sports and weight category sports. This matches the provided correct answer.

Which sub group of athletes are most likely to be at risk of micronutrient deficiencies?[Fill in the blank]单项选择题

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