Thank you for your question.
Please note, protein requirement for a sedentary person is about 0.8g/kg of body weight.
What that means is that for a person who is 60kg, his protein requirement will be 48grams.
Protein requirements for active people is between the range of [1–2]g/per kg of BW.
Protein is made up of amino acid. They are of 2 types of amino acids:
Non-essential amino acids -which the body can manufacture on it’s own.
Essential amino acids -which the body cannot manufacture on its own and therefore is required from our dietary sources.
Meats, eggs, milk, and whey protein have all the eight essential amino acids whereas vegetarian sources have only some essential amino acid missing.
However, if you combine different vegetable sources this should not be an issue.
Coming back to the main question: Can kids consume whey protein?
Well, not all whey proteins are created equal!
Supplements are big business, and most companies use very cheap ingredients, inexpensive processing methods, and include lot of sweeteners like ascuflame-k, soy lecithin, sucralose etc which can be harmful.
According to thisstudy, many samples of top whey proteins in the market were found to have high levels of lead, cadmium etc.
So, what this means is that you need to be very selective in choosing which brand of whey to use.
Ingesting 50–75g of protein daily from food is very much possible, and supplementation with whey is not required especially when kids don’t workout, as their protein requirement would be less when compared with kids who do workout and are active!
One big bowl of lentil (dal) will have ~17g of high quality protein
2 whole eggs will give you about 12g
250 ml milk will give you 8g
Peas, broccoli, spinach all have protein in them.
Carb sources like wheat, rice, breads have some protein.
If your kids non-vegetarian items like chicken, fish, just 100g of these meats have around 20–30g.
So I don’t really see the need for whey, unless you have a high quality powder, and giving them one scoop, in the form of smoothie so that they enjoy the taste (which then helps them to curb sugar cravings and avoid sugary treat because of this smoothie!)
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