Healthy weight (professionals)

Key messages & facts

Maintaining a healthy weight throughout our lives is essential for good heaIth. The health impacts of obesity and being overweight have serious costs to our health, early death and to NHS, social care and employers.

In Hertfordshire, 21.5% of adults are obese and 61.8% are either overweight or obese. In Hertfordshire, 20.8% of 4-5 year olds are obese or overweight this rises to 28.6% of 10-11 year olds who are overweight or obese.

For adults, the consequences of being overweight or are obese include a wide range of serious health risks such as:

  • Coronary Heart Disease
  • Stroke
  • Type 2 Diabetes
  • Hypertension
  • Certain cancers
  • Sleep apnoea
  • Asthma
  • Infertility
  • Musculoskeletal problems
  • Falls

Many people also experience bullying, low self-esteem, poorer mental health, fewer opportunities to work and social isolation as a result of their weight.

During childhood, obesity can contribute to serious physical and mental health problems. Overweight and obese children are also more likely to become obese adults with current trends suggesting that 80% of children who are obese at age 10–14 will become obese adults.

Health care professionals should routinely record patients BMI in consultations and give brief advice based on whether or not patients are maintaining a healthy weight.

Adult BMI Levels
 BMI Kg/m2
 Normal 18.5-24.9 
 Overweight  25-29.9
 Obese 30-39.9 
 Obese ( severe and complex)  40 plus

Research has shown that Asian and Chinese adults have an increased risk of serious health conditions at a lower BMI than the white population i.e. below a BMI 25 kg/m2. NICE advises that:

  • BMI of 23: Asians with a BMI score of 23 or more are at increased risk of developing type 2 diabetes
  • BMI of 27.5: Asians with a BMI of 27.5 or more are at high risk of developing type 2 diabetes
  • Although the evidence is less clear, Black adults and other minority groups are also advised to maintain a BMI below 25 to reduce their risk of type 2 diabetes

These factsheets compile key up-to-date information and data on child and adult weight in England. They are part of a series of factsheets covering obesity and its determinants and present complex data in an easy-to-read summary format. The factsheets are available to download from the PHE obesity website.

Referral & pathways (mainstream BAU)

Weight management support for children and their families via BeeZee Bodies, which is a free 17 week lifestyle programme to support parents and families make healthy but realistic changes to their lives to help manage weight. 

Hertfordshire County Council Public Health Service has commissioned 12 weeks FREE weight management support via Slimming World or Weight Watchers on referral. Referrals are through GP practices in the county. For patient eligibility criteria and referral process. Referral forms below:

Slimming World

Weight Watchers

Patient information leaflets available here:

Slimming World

Weight Watchers


Public health elearning

Campaigns and initiatives

Data and information including JSNA


Public Health Strategy 

Hertfordshire Healthy Weight Strategic Plan