Fuck fasting, Eat 5 to 6 small meals daily with 30 min exercise nothing too hard, walking a few miles does great. Just before doing that give your self a colon cleansing, that really flushes the toxins and the next day you feel so much better.
After a few weeks of this cont to eat 5 to 6 small meals, To judge your size portions of food use your fist. Make a fist and make each portion that size.
But after a few weeks then start with light weights for your arms, chest, legs with 15 mins of cardio like walking.
You will thank me in a couple of months!
Every 3 to 6 months do another colon cleaning.

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Your welcome.
PS If you can keep a daily journal of your food, and exercise. It really does help when you hit the wall on losing the weight. Then you can go back and check each week on what you ate, what you did etc..
Tom