First of all, for any low-carb diet to work, you shouldn't be eating low-fat.
Low-carb diets generally have a positive affect on cholesterol even though they are higher fat.
This is probably because your body uses the fats for energy before they ever have a chance to be stored in your blood.
I went off Atkins this past weekend after 12 days.
I talk about it
here.
For the first 2 days, my muscles felt weak. Then I felt pretty good for about a week.
Then I started feeling really really weak last Saturday.
And I had lost 6 pounds in the first 6 days, but hadn't lost anything in the last 6 days.
But, the more I think about it, the more I realize I didn't do it right.
I drank coffee every day, which can affect blood sugar levels and result in cravings.
I ate sugar free candy and low carb bread. Neither one of which is good for induction even though I did keep my carb count to under 20g.
I think I probably increased my total calorie intake.
I didn't exercise at all.
Now the idea of Atkins is to put your body in Ketosis, which means you are converting fat into ketones and using those ketones instead of glucose to provide fuel for your body. This is why it is so effective for people. It makes it much easier for your body to burn off your fat stores. It is actually less efficient to burn fat for energy than carbs. But this is a good thing. Less efficient means your body has to work harder and use more calories to burn the fat. This is why some people lose fat on Atkins even when their caloric intake remains the same.
But I think I went overboard with the butter and oils and other fats.
I wasn't exercising at all.
And I was likely eating more calories than before in those last 6 days with all the sugar free candies.
So even though I was in ketosis and burning fat for energy, I think my body was getting enough energy from my food so it didn't need to burn my excess body fat.
So although the low-carb approach says you don't need to count calories, I don't think that is entirely accurate. And in fact, I do believe Atkins mentions not going overboard on portions.
I read a study that showed the average calorie intake for a group of people to be 2500. When they went on a strict Atkins induction, the average calorie intake was 1500.
So I think Atkins is successful for two reasons.
1. Ketosis allows the body to more easily burn excess body fat for energy.
2. The lack of blood-sugar spikes caused by carbs, along with the filling power of proteins and fats, causes people to naturally eat less without feeling hungry.
I failed at number 2 because I consumed large amounts of caffeine, which has an affect on blood sugar, and in turn, felt hungrier and increased my caloric intake.
I am not an expert and the above is simply my current hypothesis about what went wrong.
I have started my plan to gradually switch to decaffeinated coffee over the next week or two.
And I worked out this morning for the first time in a while.
I am going to give Atkins another try once I have given up the caffeine and gotten into a regular exercise program.
Hopefully in a week or two.