Fiona O'Donnell MSc Nutritionist

Fiona O'Donnell MSc Nutritionist Empowering change for a healthier, fitter you. Nutritionist and lifestyle coach. Founder of Feedback is more than welcome and is very much appreciated.

I built this page initially to chronicle my journey from marathon running to competing in figure competition. I love training and I also love eating - so dieting is a big challenge for me. For this reason, I try to develop new recipes which are gluten free, sugar free, low carb (for the most part) and highly nutritious. I am open to learning as much as I can whilst on this journey. Following completion of my MSc in Exercise & Nutrition Science, I am now working through a post grad in Applied Nutrition with the CISSN.

I read a prompt by Richard Schwartz the other day that asked: “If you could go back and talk to your younger self, what ...
17/10/2025

I read a prompt by Richard Schwartz the other day that asked:

“If you could go back and talk to your younger self, what would you say?”

Seeing it in front of me (yes, that’s Fiona, aged 5) was powerful!

And rather than coming up with things to say to myself, I felt intense gratitude!

And that gratitude centred around my body.

I wanted to say to that young child - I’ve looked after you.

I’ve cared for and nourished this body…

At times, I’ve spoken cruelly to her, but this was a reminder that she never deserved that!

She always deserves to be spoken to with respect, with love and with kindness…

She deserves to be encouraged, to be supported, to be cheered on…

And I thought, “imagine telling that child that you were going to put her on a scales every day and tell her she wasn’t good enough because of her weight….”

Imagine telling that child that you were going to restrict her food every day because you didn’t like how she looked!

It made me feel sick to think that I ever thought that way.

And once again, I felt immense gratitude to know that I have the power to nourish that child with movement and great food…

I get to choose a path of growth!

This was a really lovely exercise and one I would definitely encourage…

16/10/2025

Did you know that a large proportion of the research around carrageenans has been done using animal models or in vitro testing….

This means that many of the mechanisms of carrageenan digestion and overall effect have been tested on rats or in a Petri dish.

And in many of these studies, higher rates of inflammation and gut issues were observed.

However….

There are human studies that have shown reduction in several chronic inflammation markers…. And even a reduction in low density lipoprotein (cholesterol).
(Sokolova et al, 2014)

A small, randomised, double blind, placebo controlled trial (Bhattacharyya et al, 2017) compared the occurrence of relapse in inflammatory markers in patients with ulcerative colitis who consumed either placebo or carrageenan capsules when in remission. 3 of the 5 patients who consumed the carrageenan relapsed. None of the placebo patients relapsed. However…. This sample size of 12 patients in a clinical population…… can we really apply this to our entire population.

In short -research around carrageenans has thrown up more questions than definitive answers.

There is no large scale RCT or Meta analysis that definitively suggests that carrageenans are unsuitable for consumption for all humans.

If you have stomach issues and food ingredients are concerning you - my advice is that you should seek the attention of a medical professional or a clinical specialist dietician to discuss which foods might be triggering your symptoms.

An individual approach to health advice is essential - whilst taking the peer reviewed evidence into account.

Don’t give me a rat study and call it a public health.

Additional References:

Liu et al, 2021. Food grade carrageenans and their implications in health and disease. I
European Food Safety Authority: Re-evaluation of carrageenan (E407) and processed Eucheuma seaweed (E407a) as food additives, (2018)

Safety considerations of seaweed & seaweed derived foods available on the irish market: Report of the Scientific Committee of the Food Safety Authority of Ireland 2020.

11/10/2025

Does anyone else wear a specific ‘uniform’ to study?

No….

Just me….

Ok then!

🐱

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