Hi.
First of all as a Diabetic, whether treated by meds or not you are covered by the Disabilty Discrimination Act. Your HR Dept should be aware of this. Perhaps you should gently remind them of this. As you have been prescribed 'exercise' then that is considered treatment.
Here is a link to up to date info on the DDA.
http://www.direct.gov.uk/en/DisabledPeo ... DG_4001071
Here is a specific extract:
Disabled people Employment rights and the Disability Discrimination Act Disabled workers share the same general employment rights as other workers, but there are also some special provisions for them under the Disability Discrimination Act (DDA). One important aspect of this is the right to reasonable adjustments in the workplace.
The Disability Discrimination Act
Under the DDA, it is unlawful for employers to discriminate against disabled people for a reason related to their disability, in all aspects of employment, unless this can be justified. The Act covers things like:
Reasonable adjustments in the workplace
Under the DDA, your employer has a duty to make 'reasonable adjustments' to make sure you're not put at a substantial disadvantage by employment arrangements or any physical feature of the workplace.
Examples of the sort of adjustments your employer should consider, in consultation with you, include:
allocating some of your work to someone else
transferring you to another post or another place of work
making adjustments to the buildings where you work
being flexible about your hours - allowing you to have different core working hours and to be away from the office for assessment, treatment or rehabilitation
providing training or retraining if you cannot do your current job any longer
providing modified equipment
making instructions and manuals more accessible
providing a reader or interpreter
Hope that helps.