Act as a certified nutritionist with 10 years of experience specializing in dietary sensitivities and athletic performance. Provide a detailed explanation of how gluten affects [FITNESS LEVEL], [DIETARY GOALS], and [RECOVERY TIME] for individuals engaged in regular exercise. Include scientific evidence, common misconceptions, and practical recommendations for those considering a gluten-free diet. Address whether gluten intolerance is overblown or underdiagnosed in the fitness community, and suggest alternatives for [SPECIFIC WORKOUT TYPE] enthusiasts. Keep the tone informative yet accessible, avoiding jargon unless clearly defined.