Healthy weight


To lose weight in a healthy way, you need to use more energy than you consume by eating a healthy, balanced diet with fewer calories while increasing your physical activity.

A body mass index (BMI) above the healthy weight range, or too much fat around your waist, can increase your risk of serious health problems like heart disease, type 2 diabetes, stroke and certain cancers.

Use the BMI calculator below to find out if you are a healthy weight.

To work out your BMI:

then divide the answer by your height again to get your BMI

For example:
if you weigh 70kg and you're 1.75m tall, divide 70 by 1.75 – the answer is 40
then divide 40 by 1.75 – the answer is 22.9
your BMI is 22.9kg/m2


If your BMI is:
below 18.5 – you're in the underweight range
between 18.5 and 24.9 – you're in the healthy weight range
between 25 and 29.9 – you're in the overweight range
between 30 and 39.9 – you're in the obese range

Overweight and Obesity

Being overweight or obese can have a serious impact on health. Carrying extra fat leads to serious health consequences such as cardiovascular disease (mainly heart disease and stroke), type 2 diabetes, musculoskeletal disorders like osteoarthritis, and some cancers.
What is not widely known is that the risk of health problems starts when someone is only very slightly overweight, and that the likelihood of problems increases as someone becomes more and more overweight. Many of these conditions cause long-term suffering for individuals and families.


Why waist size matters



If your BMI is below 18.5, this suggests that your weight may be too low.
Being underweight isn't good for your health.

Weighing too little can contribute to a weakened immune system, fragile bones and feeling tired.

Why are you underweight?



Have you lost your appetite, perhaps because you're worried or stressed?

Have you been trying to lose weight?

Eating disorders



If you're concerned about someone else, find out how you can support them.

Being underweight isn't good for you. It could cause:

Nutritional deficiencies: if you're underweight, it's likely that you're not consuming a healthy, balanced diet, which can lead to you lacking nutrients that your body needs to work properly. Calcium, for example, is important for the maintenance of strong and healthy bones. If you don't get enough calcium, you risk developing osteoporosis (fragile bone disease) in later life. If you're not consuming enough iron, you may develop anaemia, which can leave you feeling drained and tired.

Weakened immune system: your immune system isn't 100% when you're underweight, so you're more likely to catch a cold, the flu or other infections.


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We are an NHS laboratory

Our laboratory is first and foremost an NHS laboratory  that is run according to strict NHS rules and regulations. With the growth in public demand for online tests we realised that we had the ability to provide a cutting edge, safe and reliable service in an unregulated market! Monitor Your Health will provide to you the full expertise of our world class laboratory direct into your own home.


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