A study to evaluate the acceptability of ZestiVits; a new vitamin, mineral and trace element supplement for children aged 11 years and over and adults on a ketogenic or restricted therapeutic diet with regard to product tolerance, palatability and compliance.

To evaluate the gastrointestinal tolerance, palatability and compliance of ZestiVits in a seven-day period for 15 subjects aged 11 years and over following a ketogenic or restricted therapeutic diet.

• Qualitative assessments from subject questionnaires that allow evaluation of the acceptability and ease of use of the study product.

• Collection of daily data about the gastro-intestinal tolerance of the study product.

  • Collection of daily data about compliance with the study product i.e. actual versus prescribed intake.
  • Improve quality of life by increasing range of products available for use in a ketogenic or restricted therapeutic diet.

Inclusion Criteria:

1. Diagnosis of condition requiring a ketogenic or restrictive therapeutic diet
2. On a ketogenic or restricted therapeutic diet with good compliance
3. Aged 11 years and over
4. Has a requirement for a micronutrient supplement
5. Written informed consent by subject or parent/carer

Exclusion Criteria:

1. Participants aged less than 11 years
2. Use of additional micronutrient supplements during the study period unless clinically indicated and prescribed by the investigator (must be recorded in patient case record file)