Looking for Researcher to collect performance data

Looking for someone who can collect data research on the performance of brands in the Vitamin, Supplements and Protein Shake categories.

This person must be able to find out:

- How fast these categories are growing in the UK / growth of the brands

- How well the brands are doing in terms of sales etc, and which brands are the top-selling brands in these categories.

- Any other relevant information.

Please make sure research is only done on UK-based brands in the above categories.

Please send past projects you have done that are similar to this job.

Thanks.