Content for a Fitness Supplement Blog

Num. of articles: 5
Words per article: 600
Information for the blog/website: We sell body building supplements
Industry: Sports and Fitness
Topic: Articles about supplements and bodybuilding
Tone: Formal/Professional
Outline & Structure: In the long run I am looking for a part time writer for roughly 5-10 articles per month.

This initial job is for 5 articles that I need writing for a particular supplement that we sell each article will cover a different search term that people use to search for this products for example:

Review
Results
Ingredients
etc

The goal of this is to create a category around the product on our site which can answer all the questions that someone might have whilst searching for this supplement

I will give detailed instructions of how the content needs writing and structuring, as well as the main keywords and secondary keywords to be used throughout the article
Extensive research needed: yes
Extra notes: I am looking to pay between £3 - £5 per 100 words, this is for 100% original, well researched content, I will give detailed instructions and will also provide resources for researching the content of the articles.

Good English is essential, therefore people in countries like UK US CAN AU etc would be preferred

I am looking for someone long term so good a good writer will get lots of ongoing work out of this