Truthfully low carb diets are too risky to lose muscle. Alot of people say that type diet "works" but what they mean by "work" is that they lost "weight".
Your goal as a bodybuilder should be to build muscle and lose bodyfat. A low carb diet will help you lose weight in the short term but here's what will happen:
Initially you will lose alot of water because you are depleting your glycogen stores and they hold water (stored carbs are like a sponge).
After that initial period you will lose a combination of muscle and fat. The keto theory is that if you don't take in carbs that the body will use fat for energy however it doesn't work that easy because your body is thinking survival, it doesn't care if you have a six pack. So your body is going to hold onto it's stored fat for as long as possible and it will break down muscle.
Here's another problem, your muscles need glycogen for energy to contract. On a low carb diet you cannot train as hard as you can when you are eating carbs and your glycogen stores are full. Many people think they are training hard but you can't because it is like trying to drive your car without gas.
Here is another problem, on all diets you hit a sticking point. On a conventional diet you would lower your calories slightly, mostly from carbs, on a low carb diet what do you do? Your not going to lower your protein so all you have left is to lower your fat because your already at zero carbs. There is not alot of room for adjustments on low carb diets and every diet you will hit that sticking point.
Bottom line is low carb diets are good if you are looking for a quick fix "weight" loss but not good in the long run. Keep this in mind, bodybuilding is a marathon, not a sprint.
What you want to do is create a caloric deficit either by taking in less calories than you burn or increasing cardio the best way is to do a combination. What you do is small calorie drops along the way. As far as cardio HIIT cardio is great however I would mix it up with traditional cardio. I would start with 3 sessions of HIIT per week and add additional days as you go along. The most important thing in this whole process is to monitor yourself, make sure you get you bodyfat tested, the scale doesn't give you enough information and you ned to adjust your program as you go.



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Welcome! Now before we can help anybody you need to research and find out how YOU want to proceed not how someone else thinks you should cut.

