Where to start where to start...first of all go out and actually buy some books about these diets, look at the science behind them. Cholesterol from eating saturated fat only becomes an issue in the presence of moderate (or higher) insulin levels. When in glucosis (the state where your body burns glucose, blood sugar, for its primary fuel source) your body will be more affected by these things than when in ketosis (the state where your body burns ketones, fat byproducts, for fuel). Eating a very low fat, high carb diet will actually have a negative impact on your cholesterol. There are countless studies that have proven this. The Atkins diet has also been proven to improve blood lipid profiles, in women at least, who have followed it for 6 months.
Are you assuming that on a ketosis diet (ckd, atkins, etc...) that you will be getting all of your fat from steak and cheese? If so you clearly have not read ANY books published on this subject. I personally get very pissed when someone I know or work with makes a dumbass statement like "On the Atkins diet you eat nothing but meat and cheese...no veggies...that couldn't be healthy...". I suggest that you go out an actually read "The New Adkins Diet Revolution" before you make an ass out of yourself. You are suppost to add olive oil, flaxseed oil, nuts, fatty fish, etc while on this diet, in fact on any keto diet you have the option of eating these fats almost exclusively. You can eat lean cuts of chicken breast, top it with broccoli and chase it down with 3 tbsp on olive oil. Its no big deal to add a couple tbsp of flaxseed oil to a post workout protien shake either.
Now on to your diet. Brother, you are not going to lose your gut if you continue to treat your mouth like a garbage can. 4 meals a day? Sorry, but the more meals you break your food up into the better your uptake of protien, and the higher your metabolism will be. In other words, if you were to eat 3 meals a day, and take in 2000 calories while maintaining weight, it is very well possible to break the same food up into 7 meals, increase the portions slightly to take in 2200 or 2300 cals, and actually start to slowly lose weight. 6, 7 or even 8 meals a day is great, but 4 just isn't going to get the job done effciently. To make matters worse, one of your four meals is a high glycemic index mrp (myoplex). Ok, so it is post workout, you might be able to get away with it, but when dieting I usually recommend (if one is not doing a keto diet) that you take in moderate gi carbs rather than high gi carbs post workout. Also, you are taking in another one of these mrp's with your morning meal. Lay off the shakes when cutting! Limit yourself to one, post workout, pick one with alot less carbs and add some skim milk to it.
Protien. Where is the protien? I'm seeing, at the very most 150 grams or protien per day (probably less if your not eating heafty cuts of meat in those meals), plus it is only eaten over 4 meals! You are not on a keto diet, which has protien sparing properties. Eat one gram per ibs of bodyweight. That means you need about 220-230 grams a day. A ibs of chicken breast has about 85. In this low calorie environment you are not going to gain muscle on this protien intake, in fact you are probably going to lose muscle since you are doing a high carb/low fat diet.
Fat, good you are taking in 6 g of fish oil a day, that and the veggies are the two positive aspects of your diet. Where is the rest of the fat??? Dietary fat provides the building blocks for testosterone and many other anabolic hormones. Reduction in the levels of these hormones in your body will lead to muscle lose and fat gain. This is the primary reason why we lose muscle and gain fat as we age. If you are seeking a better body NEVER allow your fat intake to drop below 25% of your total calories. You do not have to add in tons of saturated fat. Add a little beef to your diet (replace the pork with it). You can also add in olive oil, flaxseed oil, NATURAL peanut butter, walnuts, etc.
Dinner:
Lean Pork
1 Serving Rice
Salad (Lett, tom, small pinch of cheese, very low carb, low fat dressing)
1 Cup Green Tea
Low carb salad dressing? You just ate rice during the same meal...do you think 5 or 6 more grams of carbs is really going to matter? What type of rice? You didn't say, so I'll assume it is some high gi processed crap. Evenbrown rice would not be my choice of carbs this late at night. Use some oatmeal (old fasion oats) with a spoonful of natural peanut butter, or better yet, some PLAIN (make sure it says that on the label), low fat or nofat yogurt with the peanut butter or 1/4 cup of walnuts, and replace the shreaded wheat/protien shake meal with oatmeal, natty peanut butter and chicken or turkey breast.
Lunch:
Tuna Sandwich w/ wheat bread
3-4 Stalks Celery
Wheat bread... you didn't say what type. Does it have added table sugar? I bet you didn't read the label. If it has partially-hydrogenated oil of ANY type (99% of the bread on the market does...never eat anything with shortening or margerine in it) it should not go anywhere near your mouth if you are concerned about bodyfat or cholesterol. 1/2 a tablespoon of hydrogenated oil a day will have a greater impact on your cholesterol than eating an entire packet of bacon and 8 whole eggs for breakfast...just because something marketed as healthy does not make it is...thems the breaks.
I'm not trying to be an asshole, its just I have people ask me EVERY day how they can lose weight/fat but have no idea about even basic nutruition. You have posted a pretty poorly thought out diet on a hardcore bodybuilding board, and wanted an answer as to why you have a gut and cannot see your abes, so I gave you an honest answer.