Is this a good breakfast?

Never eat that little each day. You'll be in starvation mode.

When your body goes into starvation mode (spoken by an anorexic who is trying to recover), it will hold onto the fat that your body does have. After it has eaten all of the fat, which sounds gross and is a really bad process for your body to go through, it then attacks your muscles (this is why people who are anorexic look so malnourished). After the muscles are attacked it then goes for the organs....when this happens people experience heart problems and many die.

Putting your body in starvation mode (under 1200 cals a day) is the worst possible thing that you can do. Plus it messes with your metabolism and screws you over in the long run...

I hope this helps!

To diet and lose weight properly needs some science behind it. At your age you need to ensure your body gets the nutrients it needs to develop properly. When you eat is just as important as what you eat. Chocolate is best eaten in the morning when you can burn off the calories it gives. If eaten at night when there is likely to be no exercise before going to bed, it will end up as white fat and increase your weight. Alcohol consumption is the same.

I speak from experience, since I lost 3½ stone 7 years ago and have kept it off since.

Exercise alone will not make you lose weight. The weight loss is usually water which is soon replaced, and it doesn't burn as many calories as people think. A moderately-loaded exercise cycle only burns 3 calories per minute. As someone who has been on a diet and keep fit regime for seven years, my advice, which I follow myself, is to treat diet as the way to control your weight and leave exercise for keeping fit. You need to separate the two in your mind.

There are two things you need to know about weight control. The first is how many calories you will need per day.

You are using energy even when you are asleep. BMR is your Basal Metabolic Rate, which is the number of calories you'd burn if you stayed in bed all day. Strangely, if you try a starvation diet to lose weight it will decrease your BMR, making it harder to lose weight and so is counter-productive. BMR decreases as you age, making it harder to lose weight but cardiovascular exercises can increase it. I could have calculated it for you if you'd given your height, weight, age and gender. Once you know your BMR, you multiply it by a factor which depends upon how much physical activity you will do in the day. It ranges from 1.2 (sedentary) to 1.9 (very active). This will give you the number of calories you will need per day.

The second is an assessment of your weight.

For that you need know your Body Mass Index, which is the clinical figure that determines if you are under-, normal-, or overweight. I could have worked it out for you if you had stated your height and weight. The normal range is 18.5 – 24.9.

If you live in the UK I suggest you contact your local NHS office and speak to a Health Trainer. They will measure your height and weight and calculate your BMR and your BMI. Knowing both will let them give you diet and fitness advice which will help you, and they may even throw in free periods in a gym or swimming pool. They're the experts and their service is free.

If you live in the US ask the equivalent people at at your local Medical Center.

That sounds like a great breakfast.

Very sensible. :-)