Rosie Letts, is an integrated women’s health expert, registered Nutritional Therapist and author.

Rosie specialises in fertility, digestive problems and weight management and has much experience treating diabetes, anxiety, high blood pressure and fatigue. As a natural fertility and women’s health expert, Rosie regularly writes for many magazines and publications, and also writes a blog for women’s health.

Through Rosie’s signature functional medicine coaching programme, Reinvent, and her first step programme, Health MOT, she helps people like you to understand and identify the lifestyle factors and physiological processes that are contributing to your condition and then shows you how to restore balance.

Rosie holds Bachelor of Science in Nutritional Therapy from Westminster University where she received a first-class honours in clinical work. Rosie went on to train with the innovative Institute of Functional Medicine and regularly attends seminars across the globe as part of her commitment to attaining the highest standards of knowledge, competence, integrity and professionalism in the practice of evidence based Nutritional Therapy.

Rosie is a full member of The British Association of Nutritional Therapy (BANT) and is registered with the Complimentary and Natural Healthcare Council (CNHC).


During this 20-minute consultation we will delve in to your health history and current situation and Rosie will explain what actions you need to take to achieve your goals

HEALTH MOT // £120

This includes a 1-hour consultation, body composition scan, analysis of your 3-day food diary and a detailed client report outlining dietary, lifestyle and supplementation recommendations for your unique set of circumstances


This follows a health MOT when necessary and includes a 45-minute consultation, body composition scan, an evaluation of your health programme and a client report detailing the necessary changes


Bespoke nutrition and coaching packages designed to create real lasting change. Programmes always include an initial in-depth assessment of your health and medical history, weekly or fortnightly consultations, which include body composition scans and dietary analysis, targeted nutrition and supplement programme and recipe planning. Reinvent programme may also include diagnostic testing and mindset training.


In certain circumstances Rosie uses diagnostic testing to identify any functional imbalances or pathogens that may be present. Diagnostic tests provide a more complete picture of the factors contributing to your health situation and allow for more targeted nutrition and supplement programmes that produce quicker results.
Rosie uses a range of UK medial laboratories, including Biolab and Genova Diagnostics so that the most appropriate test can be selected for your health concern. The most commonly used tests are:

IgG4 Food Antibodies // £113

Food sensitivities can occur at any age and trigger a wide range of symptoms. This test measures levels of IgG4 antibodies to 30 commonly offending foods including milk, corn, wheat, egg and foods that are processed with moulds such as black tea, breads and fruit juices.

Comprehensive Digestive Stool Analysis // £254

This test assesses your ability to digest and absorb nutrients as well as checking gut flora, both good bacteria (e.g lactobacillus and Bifidobacterium) and bad bacteria (e.g. campylobacter and E.coli) in addition to yeasts. It is the most advanced non-invasive evaluation of digestion and the colonic environment, and may be recommended for patients with IBS, indigestion and abdominal pain.

Adrenal Stress Profile // £107

This test detects imbalances in the stress hormones cortisol and DHEA.
Imbalances in these hormones may be contributing to anxiety, weakness, fatigue and a reduced sense of wellbeing.

Optimum Nutrition Evaluation // £330

This test helps to evaluate digestion and absorption as well as the need for vitamins, minerals and other nutrients. It also assesses detoxification and
neurotransmitter production. A few of the symptoms related to nutritional
deficiencies include mood disorders, depression, anxiety, sleep disturbances,
fibromyalgia and fatigue.

Amino Acids Analysis // £200

This test measures all essential, non-essential and various metabolic products of amino acids as found in urine. This test can help to identify protein adequacy, gastrointestinal dysfunctions, protein intolerance, and disorders of metabolism. It can also assess vitamin and mineral deficiencies.

CV Health Plus Genomics // £499

This test analyses a blood sample and utilises NMR fractionation technology for state-of-the-art lipid markers and independent risk factors that illuminate the clinical complexity of cardiovascular disease (CVD), as well as your genomic predisposition to cardiovascular diseases. Together, these markers provide a thorough assessment of cardiovascular health status, revealing the biochemical environment and cardiogenomic risk associated with inflammation, lipid deposits, endothelial dysfunction, and clotting factors underlying cardiovascular disease.

Candida Antibodies // £77

Candida is a yeast that is part of our digestive flora, however in some individuals the natural balance of the gut is disrupted leading to a pathogenic form of the organism. This results in many symptoms ranging from fatigue, bloating, diarrhoea/constipation, muscle aches and headaches, to name but a few. This test is used not only for detecting the presence of the infection but also as an indicator of the stage of the condition.

Urine Thyroid Hormones (T3/T4) & Iodine // £151

This test is really useful for detecting low grade hypothyroidism which might go undetected through standard blood tests. Iodine is vital for optimal thyroid health and deficiencies are often implicated in hypothyroidism.

Rosie Letts Nutrition Bristol