Hi Catobion, welcome to the dungeon.
You don't need any supplementation.For now, it's not really worth the money, unless the doc has told you you need this supplementation for reasons other than building muscle?
A good protein powder is helpful if you have trouble obtaining enough protein from your meals due to lack of time/money or just a taste issue.
At 150lbs@24%bf, I would estimate your BMR at roughly 1500kcal using the Katch MCardle formula (one of many formulae)
BMR = 370 + (21.6 X lean mass in kg)
Then, multiply by one of the below:
# If you are Sedentary - little or no exercise
Calorie-Calculation = BMR X 1.2
# If you are Lightly Active (light exercise/sports 1-3 days/week)
Calorie-Calculation = BMR X 1.375
# If you are Moderately Active (moderate exercise/sports 3-5 days/week)
Calorie-Calculation = BMR X 1.55
# If you are Very Active = BMR X 1.725 (hard exercise/sports 6-7 days/week)
Calorie-Calculation = BMR X 1.725
# If you are Extra Active (very hard daily exercise/sports & physical job or 2X day training)
Calorie-Calculation = BMR X 1.9
Now you have an
estimate of what you need to maintain your weight,so called maintenance calories.
Start off with small increments i.e. 500kcal below your calculated maintenance calories and keep a log of your weight/bf% as well as you weight lifted at the gym.
I've attached a copy of my spreadsheet as an example.
At 16 years old, don't expect much in the way of bountiful muscle. Your hormones have not yet really kicked in.
I don't see why you can't grow another 5 inches, though once you get to your target bf, I suggest you eat well to maximise potential height. Also, avoid very heavy weights at the gym for now. Weight training hasn't been proven to stunt growth but I still wouldn't recommend attempting 1RMs on squats for a 16 year old!
Protein needs of 1.4-1.8g/kg of bodyweight are recommended by studies. More is not detrimental but not proven beneficial either (i.e. 1g/lb of bodyweight)
Carbohydrate needs 5-7g/kg of bodyweight are recommended by studies. 7-10g if you're very active.
Fat should make up roughly 20% of your calorie intake (15-30% is a good range).
Remember, you've got roughly 24lbs of fat to lose so at a healthy average rate of 1-2lbs a week, that's 12-24 weeks. Make sure you plan accordingly.
Look around the stickies of the forum for more info.Best of luck!
