Shaw Academy the personal nutrition course seemed good (you can get discounts for their courses on places like groupon and wowcher), it was very well organised and had lots of information, plus interactive challenges each week like drinking more water and eating more fruit and veg (via twitter or facebook). You watch the live webinar (8 live & 2 recorded in total over 4 weeks), if you miss a session they record them and put them on their site 24 hours later. The advantage of attending the webinar live is you can ask questions and get answers (you can also email them) I really enjoyed this course, even happier I finished my final exams with a Distinction :)
Look out for more healthy recipes coming soon!!!