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Thanks for contacting with your health concern
1. 96 pounds [43.5 kg] for 21 years is slightly low but accurate weight doesn't lie in your age/weight but also depends upon your height proportion also, so only after calculating your BMI [body mass index], one can advise regarding effective weight gain management.
PS. As you have not mentioned your height, so I can't help you right now but can give some practical tips as to how one can gain weight naturally:
A. Improve Digestion:
i. avoid: heavy, slimy food along with fetid odor and unpleasant sight and take old rice, green gram, fresh green vegetables, banana, pomegranate, garlic,ginger,raisins,black pepper, clarified butter, buttermilk, regular brushing of teeth and tongue cleaning, bathing, lemon,salt,mint,morning walk
ii. Take protein rich diet (legumes sprouted pulses/cereals, milk with protein powder (which is required for manufacturing of
antibodies)
iii. Take
vitamin A, B, C, E in the diet which helps in strengthening the immune system.
iv. Self-expressed juice of white onion 6ml with honey in the morning and good sleep after meals is good for gaining weight.
v. Eat a variety of nutrient-rich food but who have some added advantage like:
Cabbage (cholesterol-lowering benefits), carrot (helps in liver
detoxification), cauliflower (ideal against abdominal problems), dates (best for muscle development), and onions (contains flavonoids which protect against
cardiovascular disease), garlic (has broad-spectrum antibiotic properties)
B. Daily Regime
i. Don’t skip breakfast: Take your lunch between 12 -1 PM which is the peak period of Pitta (responsible for digestion and have your dinner 2 hours before sleeping.
ii. Make sure you do not travel, do strenuous exercise, or indulge in sexual activities within one hour after meal
iii. avoid taking junk/processed, easily available food from outside unless your job/occupation is of constant touring or mental/physical stress is more.
iv. Proper sleep with proper diet is the key to healthy living.
v. Avoid smoking, alcohol, caffeine, eating late at night, stress, and drink water instead of colas
vi. Practice Yoga,
Meditation and go for an exercise regime.
vii. Walk a while after meal to help digestion
PS. I always stress that tonics and injections alone are not going to help to build the body mass, Good food & exercise must accompany the medicines for a substantial gain in weight. Remember good food leads to noble thoughts with sound memory helping in mental health and social good being
2. check with your Physician or medicine specialist who will assess whether it is a small
weight loss which just needs some good diet and exercise or is a gross weight loss which has to be examined and investigated thoroughly.
PS. Apetamin [cyproheptadine] is an appetite stimulant which is used to help gain weight and used for patients who are
underweight and suffering from loss of appetite.