I am currently studying MSc in Dietetics at King's and am enjoying the course, learning a lot. I am surrounded by excellent dietitians and academics, and most of our core dietetic and clinical science lectures are delivered by professionals from practise in hospitals around London. The Nutrition and Dietetics department at King's is one of the oldest in Europe, established in the 1940s, and is a well-established faculty. We have a large Dietetics, Nutrition, and Nutritional Science research department, and our lectures often include researchers from this department. There is a close collaboration between King's and large research hospitals like GSTT and King's Hospital(obv). This year, there are 24 of us, but for group work, we usually form groups of three or four. For practicals, we pair up in twos or threes.
Definitely UCL is a great university, but so is King's. Both universities are in the Russell Group, but UCL's Dietetics course is relatively new and I know it is more expensive as well.
Last year, I was in the same position as you and chose King's for its location mainly, and because of the money aspect too. After studying here and learning about the department and the university itself over the past seven months, I know I made the right choice. However, I have no idea how it is to study Dietetics at UCL. It would be great to hear from someone who chose UCL over King's to see their perspective.
One more thing - We are all here with first-class honors from our bachelor's degrees, and quite a few of us are struggling with grades this year. Marking is additional stress component on top of other factors - demanding course, long hours, lots of classes and assignmnets, mental/emotional impact for some of us too with transition to MSc from BSc and placements. It is not easy sometimes here at King's, but I know at UCL marking is even more harsh ( I know someone who has MSc form UCL but in Nutrition, she said it was really difficult and that course has impacted her mental health). Just some things to keep in mind.
All the best to you, and I trust you will make the right choice!