Which workout yields the best results: Insanity or P90X?

I've done both programs. After I finished P90X for the third time I started my own routine. I can not tell you how ineffective I now find both P90X and Insanity.
I think you would be better advised to do several days of weight training and one or two days of cardio.

THIS!

Insanity=cardio
P90X=strength/muscle mass

I recommend Insanity if your trying to get out of the overweight stage then once you get out of it do P90X.

I recommend Insanity if your trying to get out of the overweight stage then once you get out of it do P90X.

Depending on how overweight they are Insanity may be one of the absolute worst possible programs to do, based on the high intensity nature. Many overweight and obese people are not capable of performing many of the moves in Insanity without over stressing the knees simply due to their weight.

I have done P90X and some of Insanity. If you need an instructor (video tape) to give you motivation, then by all means pick one. P90X was great --- it worked for me. I dropped body fat.

BUT --- I personally feel that P90X is glorified cardio. Yes, you are lifting but not lifting heavy. So in the end, you are burning calories and fat, but not really gaining muscle. I was extremely disappointed in the leg routine especially. All depends on your goals.

If you can manage to motivate yourself, I would recommend doing your own thing. But that is just my opinion.

You can lift heavy with P90X. It is as hard as you want to make it.

I've tried both P90x and Insanity. They both have good and bad. If you are looking for weight training and resistance, then P90x is the better choice. Insanity is cardio based, but definitely builds strength using your body to change your body. My problem was time - so I chose to do Shaun T's Focus T25 workout. The first 2 phases are cardio and strength building - a milder Insanity. The Gamma phase uses weights and carves lean muscle. I've been thrilled with the results, especially given it's 25 minutes a day, 5x a week. I have time for other activities to keep me moving.

"Carves lean muscle". You sound like an infomercial, so I looked. Surprised to find you're a beachbody coach that loves shakeology and everything beachbody! Not that there is anything wrong with that.

Personally, I've done both programs and two hybrids. If you want some serious intensity I think that Insanity is more difficult. However, P90X is a perfect program as well. If you haven't done anything like this before then P90X is the way to go. These are my reasons:

P90X, because of its combination of weight training and cardio, helps you build lean muscle. Lean muscle is essential for weight loss. It is one of the best components for burning that stubborn fat in all areas.

The cardio portions of P90X, in my opinion, are not as severally challenging as Insanity (which is completely cardio and interval training). But trust me it will get that heart rate through the roof and help you achieve your fitness goals.

If you decide to go the Insanity route, then make sure that you're able to engage your core while gasping for air. I think that P90X helps you achieve this form and technique. If you do not engage the core, in Insanity, you have the possibility of injury and/or not achieve the technique and skill that Shaun T provides for you.

Both programs are GREAT and will provide you with the tools to achieve your fitness goals, but remember this is a life style change. I say you do both. Start with P90X: build that lean muscle and get in great condition then blast through Insanity with the full potential and athleticism that you've developed while doing P90X. Hey then maybe you can try a hybrid? I loved the hybrid because I got to get the muscle building from P90X and the intense cardio from Insanity.

I use to be a cardio queen. Then I did P90X and watched my whole body changed for the better.