What is the best physical activity to lose weight?

The first thing to do is increase how much water you drink, before you start any activities. This will absolutely boost your results all accross the board.

That being said, in my experience Jogging is hands down the best activity for weight loss. You sweat, you burn calories, you tone and tighten all kinds of muscles, and it yields Excellent results. But be careful, DO NOT start out jogging more than you can handle. The key is to start slow, literally jog slow. It is very common to have trouble with jogging simply because it is a mindset that jogging needs to be fast to be effective. It is more effective fast, but if you start over what you can handle you will either injur yourself or make yourself so sore you won't be able to jog again for several days.

Depending on where you are at physically, you may think it impossible to jog even half a mile. But make a conscious effort to jog very slow, and i guarantee you will be surprised at the distance you are able to go.

Exercise like this yields great results while actually being done, but the added benefit is that your body will continue to burn calories at a higher rate for hours after you are finished.

If you have trouble with joints or knees or things of the like, try biking. Biking is much easier on your body, the results can be Excellent here as well, but you will have to greatly increase the distance you go. If you would jog half a mile, you would have to bike farther to get the same results.

Another great exercise is swimming. If you are swimming for the purpose of working out, you will be surprised how hard your body works to do this. The results here can be as good or even sometimes better than jogging. The problem with swimming is that it tires you out much faster, and thus decreases the amount of time spent exercising. Whereas if you jog a mile out, you have to walk that mile back.. and the more time you spend the better.

Lifting weights is great too. Your body will consume calories and energy sources to both lift the weights and replenish your muscles afterwards. Like I stated before, exercises like this will help burn calories for hours afterwards.

Final note: Whatever exercises you do, a great thing to do is eat fruit in your daily diet. Fruit and Vegetables actually. They contain natural proteins and other ingredients that will help rebuild your muscles. It will decrease how sore you are, keep you healthy, and increase your results.

Stay away from pasta, sugar, and too much bread. Cereal is typically a poor choice when trying to lose weight as well.

Hope this helps