Can a teenager open an IZeat account?
No. An IZeat account belongs to one person, and the terms say that person is eighteen or older; an account opened by a minor is closed when we learn of it. That is the whole answer to the question this page is named after, and it is the same answer whatever the reason for asking.
It is also the usual bar in this category. MyFitnessPal's privacy policy, read on 20 September 2026, says "you have to be at least 18 years old to use MyFitnessPal" and that the service is not designed for anyone under eighteen. Lose It!'s terms, read the same day, say "The Service is not directed at Users under the age of 18. If You are under the age of 18, You are not permitted to register as a User or use the Service."
The reason is not that teenagers eat badly or that tracking is sinister. It is that a growing body is a moving target, the people who should be answering questions about it are a parent and a professional who knows the young person, and a product with no age limit cannot tell the difference between a sixteen-year-old rugby player bulking for a season and someone who needs a different kind of help. Setting the bar at eighteen is the simple version of not guessing.
What can a parent do instead?
Start with why the question came up, because the answers diverge quickly. A teenager who plays a sport and has been told to eat more is in a different situation from one who has started skipping meals, and both are different from a family that simply wants to cook better. None of those is solved by choosing an app.
| What is going on | Who is best placed | What IZeat does |
|---|---|---|
| Training hard, wants to eat for it | The coach, and a dietitian where the club has one | Nothing: no account under eighteen |
| Asked to gain or lose weight by a doctor | That doctor, with the family | Nothing; the plan is theirs to set and follow |
| Counting already, and it worries you | A doctor or a professional who knows them | Nothing, and no app is the answer to that question |
| The family wants to eat better together | Whoever you cook with | Nothing for the teenager; an adult's own account is their own |
| A parent wants to track their own food | The parent, as any adult | An ordinary account, with no supported delegated-logging workflow |
Bottom line: in every row, the next step is a person rather than a product.
One practical point about parents' own accounts, where an ordinary calorie target and a day total are all there is. IZeat has no family plan, no shared diary and no second profile: an account is one person's food, read by them. Logging a teenager's meals from a parent's account would make a record of somebody else's eating under somebody else's name, which is neither what the product is for nor a good idea.
What if your teenager is already counting?
IZeat is the calorie tracker inside ChatGPT, Claude or any other assistant. Tell the assistant you already use what you ate instead of searching for foods and entering them one by one. It is built for adults who chose to keep one.
Everything else on this site is written for those adults: a food diary kept during a calorie deficit, or while bulking, or cutting for a sport, with a day total and a receipt after every meal. A teenager already counting on some other app is not a question about tools. If it looks like part of training and a coach or a clinician is involved, they are the ones to ask. If it looks like it has taken on a life of its own, the person to talk to is a doctor, and the sooner the better; that is a conversation no product should be standing in the middle of, and IZeat does not try to.
Frequently asked questions
Short answers to the questions people type, each one sourced above.
Can a 16-year-old use IZeat?
No. The terms say an account belongs to one person aged eighteen or over, and an account opened by a minor is closed when we learn of it. That holds whatever the reason, including sport. If a younger person needs help with how they eat, the people to ask are a parent and a professional who knows them, such as the club's dietitian or their doctor.
What is the minimum age for calorie tracking apps?
Eighteen at IZeat, and eighteen at the two we read: MyFitnessPal's privacy policy, read on 20 September 2026, says you have to be at least eighteen to use it, and Lose It!'s terms say the service is not directed at users under eighteen and that they may not register. Ages differ by product and by country; those are the three read here.
Can I log my teenager's meals from my own account?
No, and it would not be a good idea. An IZeat account is one person's food, read by them: there is no family plan, and no supported second profile, shared diary or delegated-logging workflow. What a parent's account holds is their own record, with the source of a number on every row. Anything about a teenager's eating belongs with a professional rather than in an adult's diary.
My teenager plays sport and wants to eat more. Where do I start?
With the people around the sport: the coach knows the training load, and some clubs can put you in touch with a dietitian who works with young athletes. A doctor is the other door, and the right one if anything about growth, energy or weight is part of the question. Eating for a sport at that age is normal; picking a tracking app is not the step that helps.
Is tracking calories bad for teenagers?
That is not a question this page can answer, and it would be dishonest to try: it depends on the young person, and the people placed to judge are the ones who know them. What IZeat can say is what it does: accounts are for adults of eighteen and over, it sets no targets for anyone, and it gives no advice at any age.
What can I use as a parent, for myself?
An ordinary IZeat account, like any adult: you say what you ate to the assistant you already use, it is recorded with the source on each item, and the day shows the total against any target you set. There is no family view and nothing shared. If cooking better as a household is the goal, that happens in the kitchen rather than in a diary.