Suggest you do not take additional Vitamin B supplementation if you do not need them. Taking vitamin B12 will not help you lose weight. There are no adverse effects associated with excess Vitamin B12 intake from food and/ or supplementation, however, why take extra when there is no need too. If you want to lose weight suggest eating a Heart Healthy diet which is a moderate fat diet. You need approximately 1500-1800 calories per day which is spread across 3-5 meals a day with snacks between meals. Moderate fat diet means = use polyunsaturated (omega 3, corn oil, nuts, etc) fats and monounsaturated (olive oil, canola oil, peanut oil, etc) fats, no saturated fats (high fat snack foods, butter, fat spreads) and no trans fats. Eat low fat meats (chicken, fish, loin of pork) or non-meat sources (soy products, nuts), low fat vegetarian combinations (rice & beans, pasta & beans, low fat cheese & pasta), low fat and substitute dairy products (1% milk, low fat/fat free yogurts, low fat soy milk/soy yogurt), use plant oils, non trans-fat margarines, and eat fruits and vegetables you can tolerate. Eat daily high fiber breads and cereals (oatmeal). To help eat less food per meal, eat about 7-10 almonds (good fat), 20 minutes before lunch and dinner so you will feel full faster and not eat as much food. Portion control is important and here some general tips = ½ cup for all starches and vegetables; one piece of fruit or ½ cup of small fruits; 1 cup for low fat dairy products, and only 3oz of low fat meat or protein substitution a meal (only 6ozs total a day). Try increasing your physical activities to 1/2 hour or more a day. That 1/2-hour or more can be broken up through the day, 10 minutes here and 20 minutes there. For example, park your car in the back of the parking lot and walk to the store. That will give you additional walking. Do not be discouraged, weight loss can be a slow process but the slower you loss, the higher chance it will stay off. Think of this new way of eating as your new healthy lifestyle and not as a diet. Hope this helps you.
I think that there are lot of machine is available for losing the weight.There is also some type of workout for better body without any type of problem.And take a healthy food so you can't suffer from any heavy weight problem.
B12 is often prescribed in conjunction with folic acid for treatment of anemia/s. What makes you assume that ingesting B12 will assist in losing 35 lbs.?
Secondly, I'd recommend calculating your BMI (www.exrx.net/Calculators/BMI.html) prior to beginning any weight loss program, which should be proceeded by seeking the assistance of a nutritionist.