To be fair, I have to mention that exercise alone doesnt usually achieve long-term weight loss when you have a significant amount pounds to peel off. You really need to consider your diet, too. Exercise alone wont lead to your shedding major poundage if you have poor eating habits and you continue to follow them.
To be a successful "loser" it comes down to calories: spending more and eating less. Its a combination of these factors that will result in a significant enough calorie deficit to lead to the kind of success you want.
Avoid a Beginners Blunder
But what if youre a weight loss newbie? What if youve never worked out a moment in your life? Those 30 minutes can seem downright daunting. Perhaps if you are just now dealing with your weight issues as an adult, you havent exercised since PE in elementary school. (Yours truly couldnt even say that! I was one the kids with a note every week!)
Dont let yourself fall into the thinking that if you cant devote 30 full minutes to working out that you shouldnt even bother. Sure, 30 minutes may be ideal, but that doesn't mean less than that is worthless.
Try exercising for 10 minutes today and add 5 minute increments until you work up to 30. This may mean something as simple as parking further away at work or walking a circuit through part of the mall before your Saturday shopping spree. Do what works for you.
The Bottom Line
The truth is, there is no magic number when it comes to how much is enough exercise. Just like no fantastic pill will ever exist to get us to our weight goals. And no diet will make losing weight effortless.
Your friends idea isnt fair: In the long run, all exercise counts! (Some exercise is better than being a full-time couch potato, right?!) Dont hold yourself to impossible goals or beat yourself up for not meeting someone elses idea of what is good enough. Find what works for you. If you stick to it, you will see a little bit really can go a long way.

