Which of the following is false?

Question

BlackTom AI · Accepted Answer

To tackle the question properly, I’ll evaluate each statement in turn and note why it may be true or false in the context of iron needs and anaemia in athletes.
Option a: 'Heavy exercise can increase iron requirements due increased losses of iron in sweat, gastrointestinal bleeding and destruction of red blood cells from continual jarring and contact.' This aligns with current understanding: intense training can elevate iron losses through multiple pathways (sweat, GI microbleeds, hemolysis from repetitive impact). So this statement is true. 
Option b: 'Athletes may be at risk of iron deficiency due to diets excessively high in carbohydrates and a poor dietary iron intake.' A diet very high in carbs could be low in iron-containing foods, contributing to iron deficiency if overall iron intake is inadequate. This is plausible and true in the right dietary context. 
Option c: 'Iron deficiency anaemia must be treated with iron supplements.' In clinical practice, iron deficiency anaemia is typically treated with iron supplementation, often alongside dietary changes and investigation of underlying causes. The word 'must' is strong but broadly reflects standard treatment, so this statement is generally treated as true in educational settings. 
Option d: 'Athletes should take an iron supplement as a precautionary measure against iron deficiency anaemia.' This is a cautious falsehood: routine or universal iron supplementation without confirmed deficiency is not advised, since unnecessary iron supplementation can cause adverse effects and iron overload in some people. This statement promotes a blanket preventive approach, which is not appropriate for all athletes. 
In summary, options a, b, and c describe plausible or correct clinical considerations about iron in athletes, whereas option d promotes a blanket precautionary supplementation that is not recommended. The incorrect choice is the one that advocates universal prophylactic iron supplementation.

Which of the following is false?单项选择题

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