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I am training for an Ironman-- how many calories I should be taking in during the race? For your information-- I'm 100 lbs, 5'1 Female. :)
by Catherine Vest

I am training for an Ironman-- how many calories I should be taking in during the race? For your information-- I'm 100 lbs, 5'1 Female. :)


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Joanne Perez, MS, RDN, LD

It is important that you have been taking in adequate calories, carbohydrates, protein and even fat all during your training. If you have fueling properly in the weeks leading up to the race, you should aim to consume about 250 calories per hour while on the bike and and about 200 per hour while running. Since you can't fuel during the swim, it is important that you have an adequate meal about 2 hours prior to the start that is a mix of carbs and protein and about 500-700 calories. Look for calorically dense foods like nut butters, bagels/rolls, bananas.


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