Should teenagers use protein powder and creatine?

Start with the need. The sports-nutrition society ISSN states that 1.4–2.0 grams of protein per kilogram of body weight per day is enough for most people who train to build and keep muscle. That is an amount most teenagers can reach through food: milk, eggs, meat, fish, legumes, dairy. Protein powder contains the same protein as a chicken breast, only in convenient form. It does nothing magical and is not required for a young body to grow and get stronger.

Creatine draws the most worry, but the evidence is unusually reassuring. The ISSN position stand concludes there is no compelling scientific evidence that short- or long-term use of creatine monohydrate (up to 30 g/day for five years) has any detrimental effect on otherwise healthy people, and that use by children and adolescents in serious training is acceptable with a favorable safety profile. The society notes that 'not for use under 18' warnings reflect legal caution rather than science. Jagim and Kerksick's review of creatine in children and adolescents points the same way: improved performance with no reported adverse events, while honestly noting that youth-specific data is still thinner than adult data.

And the training itself? The international consensus on youth resistance training (Lloyd and colleagues) dismisses the persistent idea that lifting stunts growth or damages growth plates. Properly instructed and supervised resistance training is safe and beneficial for the young. In short: food first, supplements only top up.

The worry runs deep because it is about children. A frightening claim about a growing body feels safer to believe than to dismiss, so the myth of stunted growth and damaged growth plates survives long after the research set it aside. The 'not for use under 18' label reinforces the feeling: it is written by lawyers protecting the manufacturer, but read as a scientific warning. Meanwhile the supplement industry profits from both camps. It sells powders and capsules to parents and teens on the promise that they are needed, and it does just as well leaving the worry in place, since an uncertain parent would rather buy the 'safe' brand than nothing. On top of that sits the moral reflex that supplements are cheating, which makes the question emotional rather than practical.

Food first. Get your protein through ordinary meals; work out how much your body actually needs before buying any powder. If you already hit the amount with food, no supplement is needed at all. If you still choose powder, it is just convenient food, not medicine. Creatine is safe and reasonable for a teenager who trains seriously and eats a balanced diet, but it is an add-on, never the foundation. If you have a known health condition, talk to a healthcare professional first.