When you sweat, where is that sweat composed of? Fat? Protein? Water? Electrolytes?
Why would sweating constitute a healthy, lasting way to lose weight?
Sweating doesn't lead to that.
What is your priority? If you want to lose weight, eat at a deficit first and exercise second.
If you want to add muscle, then eat at a surplus and resistance train. Most people do weight lifting, but you can also do bodyweight training, swimming, rowing, any exercise where your body has to work against something.
^In that case, you might want to try other forms of exercise, as well as yoga. Hot yoga just makes you sweat. As soon as you have a drink that "loss" is replaced and you are back to where you started in terms of weight loss (except all stretched out, flexible and relaxed).
I like yoga.. makes me feel great. But specifically as an exercise for weight loss? I would chose to add something more active.
Running, cycling, swimming, starting strength, pylometrics, DVD's such as 30 day shred or P90X .. any of these (or similar) done regularly in combination with your yoga would positively affect your progress and assist you in reaching your weight loss goal.
Number 1 priority is eating at a moderate deficit though. Nothing beats that.
Right now I do crossfit 2-3 times per week, 20 minutes of incline power walking very morning, as well as zumba, turbo kick and running through the week.
Your liver and kidneys get rid of toxins. You won't sweat them out (other than microscopic amounts).
You do those things too but only mention the yoga.
Why tell only half the story if you want help?
Depends how long you have been doing that stuff.. if 3 months plus and no signs of improvement, I say begin strength training. Proper program with heavy weights.
My exercise motto is: "More is better. Everything counts." So, if you like yoga. Do yoga. On it's own yoga isn't going to melt off the pounds. If you are already eating at a calorie deficit, and working out that's most important for weight loss. Adding yoga can only help, if it's something you enjoy.
For me the real benefit of yoga is stress reduction and it makes me feel good. It's also good for flexibility. Like any other low intensity exercise it will burn some calories and may have modest benefits for muscle tone. Probably not enough to significantly affect weight loss. But, everything counts.
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