A 36-year-old male asked:
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to lose fat and gain muscle, i do crossfit training and 1/3 of my calories come from carb, 1/3 protein, 1/3 fat. right nutrient balance?

2 doctor answers
Dr. Pouya Shafipour
23 years experience Family Medicine
Zone diet : If you're trying to lose weight and improve your muscle tone i suggest trying zone type diet which includes 40% carbohydrates 40% lean protein and 40% healthy fish or plant-based fat. This is closer to the paleo diet that crossfit suggests except on the paleo diets you're not allowed to have any dairy or starch.
Answered on Aug 29, 2013
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Dr. Donald Alves
24 years experience Emergency Medicine
Experts differ: I prefer low-fat, others low-carb, main issue is to be attentive to your calorie intake--quality calories with healthy sources and good nutrient distribution--to best fuel your cross-fit (or other) fitness quest. Good luck!
Answered on Apr 24, 2013
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Dr. Robert Killian
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The Best Diet: Good question. Here is the science: a diet of 1500 kcal's made up of 60% protein 25% carbs (complex carbs as the majority) 15% fats (vegetabl ... Read More
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A 16-year-old male asked:
Dr. Thomas Namey
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Go low carb, period: Low carb it, get protein and fat. Exercising muscle will put on weight, but you will lose body fat!
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A 22-year-old female asked:
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Different approach: It is probably a better idea to do things in a different order - lean out first, then build muscle. With a height of 5'6", you may want to first aim f ... Read More
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Dr. Patrick Tyrance jr
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Not likely: A balanced diet is key with recommended amounts of protein, healthy fats, and carbohydrates. Given you described diet it is possible to lose weight, ... Read More
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