This is a good post.
It never ceases to make me cringe when I see a truck driver that is not even 35 or 40 that is overweight and has vericose veins all over his legs.
I don't walk long distances, I simply run up a long steep hill once or twice and then walk up it a couple more times. I do this around 5 days a week. If you do not have a long, steep hill, as I do, then buy a bike if you can afford it. My son was getting pretty pudgy and out of shape, and he got a bike and already has put over 100 miles on it, and he is playing a lot of basketball when he is not at school or on the computer. It is all about getting that heart hammering for around 30 minutes most days.
If you choose to follow my advice, DO NOT CONFUSE THIRST WITH HUNGER. Make sure you fully hydrate before you eat, or you will eat 20-50% more because you are thirsty and attempting to quench your thirst with food. Only drink WATER when you are thirsty. Keep sweet beverages to a minimum. Always drink low sugar drinks with meals (water is better). If you must eat sweets or dessert, do it after you have consumed a reasonable amount of protein and fiber, and a little fat too. Sugar is the enemy, not fat.
Find a quality multi-vitamin from sellers such as GNC, Swanson Vitamins, or Now Foods. I use "ADAM" from Now Foods in IL. It is the best on the market and is reasonably priced. If you are a small person, take one a day instead of two. Take it when your digestive enzymes are kicking, such as after, or during a small meal. Don't supplement without consulting a doctor if you have kidney or liver disease, or major metabolization issues.