Registered dietitian nutritionist

Skype & online dietitian nutritionist

Gut, bowel and gluten specialist


Registered Dietitian & Clinical Nutritionist, Ms Shem Heather Allanson is a based on the Isle of Man. She provides face-to-face consultations (whole island coverage) as well as international Skype and online consultations. Shem has a BSc Human Nutrition and Dietetics degree (registered 1986) and has over 30 years of experience working in the field of clinical human nutrition.

More about Shem’s background and experience here.

Registered dietitians are experts in human nutrition. They are able to diagnose disease and provide the appropriate dietary treatment for 500 or more different specialist, medical and therapeutic diets.  They are familiar with medications, understand surgical and medical procedures, can interpret blood tests and work and train alongside doctors, pharmacists and other medical professionals in a clinical setting. In order to remain registered, dietitians must also engage in regular professional development. For example, they may attend seminars, courses and medical conferences. All practice is evidence based.

Shem’s interests include:

  • Achieving optimal health through nutrition & nutrition supplements
  • Coeliac disease, gluten sensitivity,  gastrointestinal disorders, leaky gut,  SIBO
  • Stomach and bowel problems, IBS, Crohns disease, ulcerative colitis
  • Autoimmune diseases
  • Multiple sclerosis
  • Diabetes and insulin resistance
  • Allergies and intolerances
  • Migraines and headaches
  • Cancer prevention and treatment
  • Special diet cookery, especially for gluten, corn & cow’s milk free diets
  • Gluten free training / special diet training – for restaurateurs and caterers
  • Specialist renal diets for end stage renal failure, haemodialysis, peritoneal dialysis and following renal transplantation
  • Specialist liver diets
  • Computer-based nutrition research
  • Functional, integrative and alternative evidence-based medicine
  • Sport’s Nutrition advice (and no medical problems) – click here.
  • Optimal nutrition for sports performance (for those with additional medical conditions)
  • Specialist advice on children’s diets – click here.

Dietitians (dieticians)

What is the difference between a nutrition therapist, nutrition consultant, nutritionist and a dietitian?

I believe …

Good health should be treasured and nurtured. We have one body and we should look after it! This means:

  • Taking responsibility for your own health
  • Eating an optimal diet based on real foods
  • You cannot exercise your way out of a bad diet!
  • You cannot medicate your way out of an unhealthy lifestyle!
  • Take time out every day to relax and de-stress
  • Take time every day to get some exercise
  • Take time every day to get out into the fresh air
  • Learn to look after your body and your mind
  • Look after the environment. We need it if mankind is to have a future

Then you can look forward to a healthy and active old age……and so can your children, and your children’s children!