P90X And Insanity – The Danger Of Undereating (From Personal Experience)
I’m going to share some personal experience about calorie intake on exercise routines like P90X and Insanity. I have experience on not eating enough, even after being thoroughly advised by the Beachbody advice staff to increase what I am eating.
So here’s some background:
When I did my first round of P90X, I ate by the guidelines. I ate 3,000 calories a day. And I shed fat in the first phase. In the second phase, I shed more slowly. My first thought was “I’m over eating!” So I cut my calories down.
When I started this last round of P90X, I ate less calories purposely from the start. The first 2 phases I ate at 2,400 and the last phase I ate at 1.800.
Now…I lost some fat at 1,800, but not nearly as much as what I did when I was eating at 3,000.
When I started Insanity, I thought the 1,000 deficit would be the way to go. So I set my diet up with that in mind. I pushed hard the first week and saw a loss of 2 pounds. After 2 weeks, I was down near 3 pounds, an inch off my waist and a bit more than that off of my chest. And then it all stopped, though.
My energy for the workouts decreased. I started to struggle more, even in the warm-ups. I had problems finishing strong through the routines. I quit losing weight, losing inches, and losing energy.
I knew that something wasn’t right, so I went back to the guidebook and did some reading.
Here’s what I learned:
1,000 calorie deficit works real well with light to moderate exercise or no exercise at all. But when you subject your body to a strenuous routine, 1,000 calories short will eventually shock your body in a negative way.
Today was only my second workout since increasing to 2,400 (which is at 500 deficit on the low end, so I may be increasing again next week). I could tell a huge difference in my energy throughout the routine, even if I did still get winded and tired. But considering I had interrupted sleep last night from kids, being able to push harder today was a blessing.
And I’m guessing at my end-of-week weigh in and measurement, I’ll see a decrease in weight and inches.
The moral of the story: If you are doing P90X or Insanity to lose weight, be mindful of your calories. Too little is dangerous to your results.