Under weight. Please advise me in this!

Being underweight can also be due to :- Impair immune function Raise your risk of infections Lead to osteoporosis and fractures Cause fertility problems Thyroid issue Diabetes - mainly muscle wasting happens Any carcinoma growths Looking for weight gain? Do it right ... 1.Eat more calories than your body needs. 2.If you are looking for gaining  weight slowly and steadily, then aim for 300-500 calories more than you burn. 3.Eat proteinaceous diet. Protein forms the building blocks of your muscles. Eating sufficient protein is required to gain muscle weight instead of just fat. 4.It is best to eat plenty of protein, fat and carbs for 3 meals in a balanced form , than junk foods to put on weight. 5.Aim for 0.7-1 grams of protein per pound of body weight  as ideal and not more. Protein has a double sided action, it can also decrease appetite as well. Thus, get a proper guidance on how much to eat and what to eat . 6.Go to a gym and lift, 2-4 times per week. Lift heavy and try to increase the weights and volume over time. 7.Don't drink water before meals. This can fill your stomach and make it harder to get in enough calories. 8.Eat more often. Squeeze in an additional meal or snack whenever you can. 9.Drink fruit juices between breakfast and lunch (11am) , second round at eve ( 4pm) 10.Drink milk. Drinking whole milk to quench thirst is a simple way to get in more high-quality protein and calories. 11.Get quality sleep. Proper sleep is very important for muscle growth. 12.Eat your protein first and vegetables last. If you have a mix of foods on your plate, eat the calorie-dense and protein-rich foods first. Eat the vegetables last. Good foods for weight gain: Nuts:  Almonds, walnuts, Peanuts etc Dried fruit: Raisins, dates, prunes and others. High-fat dairy: Whole milk, full-fat yoghurt , cheese , cream. Fats and Oils: Extra Virgin and Avocado oil is best. Grains: Whole grains like brown rice. Meat: Chicken, lamb etc Choose fattier cuts. Tubers: Potato, sweet-potato and yams. Dark chocolate , Avocado , coconut milk. Don’t push too hard too soon. Start slowly with some basic weight training routine for your full body 3 times a week to help you build some muscles. You may want to start with a trainer first How we help in weight gain 1.We conduct weight gain programs for healthy weight gain with good muscle mass  . Every program is based on understanding cause for weight loss. 2.Total number of Days: 60 Days . 25 days with complete diet training and rest of the days with proper diet chart plan. Followed up after 55days to understand the weight gain. 3.Muscle mass scan analysis is done before starting the diet chart. 4.First 25 Days we follow : *Fat burn Phase: Flush out unhealthy fat from body. Because once excess fat is burnt, only muscles can grow easily . *Immune booster phase : Boost immunity. Includes more omega 3 and boosts calcium levels. *Weight Gain phase : Increases appetite , Diet chart training for healthy weight gain. 5.No daily follow ups. 6.No supplements. 7. Dietician chart to help to maintain the muscle mass .