Adequate stomach acid is vital for good gut health – it digests and breaks down our food, kills off any bugs and bacteria, stimulates further digestive enzymes further down the digestive tract and keeps our beneficial gut bacteria happy (they love an acidic environment. The bad bugs like an alkaline state). However, too low or too high stomach acid can cause some very uncomfortable symptoms such as indigestion and GERD.


Indigestion will often as not be diagnosed as too high stomach acid, but did you know that the symptoms for low stomach acid are the same as for high stomach acid – heartburn after eating, indigestion, bloating etc.? My clients often come to me with all of these symptoms and they are taking antacids to alleviate them. However, antacids may reduce stomach acid further (if you have been on antacids for a long time you may have started out with high stomach acid but it is now pretty low) and make matters even worse. When a client comes to me with gut health issues, I want to make sure that their stomach acid is optimal. I have an easy little test using bicarb of soda that helps me assess how their stomach acid is doing. Many of my clients have been on antacids for years and the test shows that they have next to no stomach acid at all. This can cause serious gut discomfort due to the inability to break down food effectively in the stomach. Low stomach acid can be driven by many factors, such as ageing (our stomach acid reduces as we age), zinc deficiency (zinc is required to produce stomach acid), medications etc.


However, some clients definitely have excess stomach acid or conditions such as hiatus hernia whereby the valve leading from the esophagus to the stomach is faulty and the acid from the gut refluxes back up into the esophagus. I would always recommend my GERD and indigestion clients to do a food intolerance test. I have found that identifying reactive foods and eliminating them from the diet can help to normalise stomach acid, and eradicate symptoms. Common infections such helicobacter pylori can cause chronic indigestion (as well as stomach ulcers and cancer on a long-term basis) so if things do not improve I will refer you to your GP for a breath test to test for this particular bacteria, which can live in your gut for years.

High and low stomach acid can also be caused by making poor food choices. An excess intake of junk food and alcohol can be big drivers of stomach acid dysfunction. Chronic indigestion and GERD are not normal and can be improved and completely eradicated with an individualised nutrition plan.


Fiona is one of my all time favourite people. After high school, I weighed in at 99kg. At 174cm, I have been overweight by 15-20 kgs for all my adult life. Until, at age 53, I met Fiona. She immediately diagnosed my primary problem and by following her dietary coaching, I lost 16 kgs in 5 months. More importantly, I have maintained this for more than a year now. Now, well into the second half of my life, life is good, very good. As I said, Fiona will always be one of my all time favourite people. Thank you Fiona.

Fiona ran a course at work and it was fantastic – I learned so much and she tailored the programs to each individual which worked really well. I reached my weight loss and health goals and it really wasn’t too hard and I still have treats!  More importantly, I feel much better in myself for making food changes and continued to see her independently when the course at work finished.
Charlotte Carlish
Indigestion, stomach pain and abdominal cramps, were an every day occurrence for me. I was quite desperate by the time I found Fiona. With the help of some supplements and allergy testing, Fiona Took me on a journey of discovery. Thanks to her professional and kind guidance, I now  know which foods to avoid and which ones will help my gut to stay healthy.  For the very first time in a long time, my tummy now feels quite normal and I no longer suffer any of the above conditions. To say Fiona has change my life may sound rather dramatic but it is completely true and I will be forever grateful to her.

Feeling Great, Losing Weight!

I have been working with Fiona at Physical Nutrition for about 10 weeks through a corporate program run my employer.  Losing weight and making some real changes to my dietary lifestyle has been a game changer for me.  Through her weekly tutorials, Fiona has taught me about the food I eat, what is best for my body and to gauge how I feel after each meal.  Combined with a sensible exercise routine of walking and cycling, I have managed to drop my weight by 7kgs during this period.  My energy levels are up, I’m feeling fitter and I’m eating much more balanced meals and now know which foods to avoid and which to eat more of!  It’s been a great experience and I would highly recommend Fiona’s program.

I have recently completed the Physical Nutrition 10kg in 20 weeks program and I couldn’t be more thrilled with the support and guidance Fiona has provided.
The 10 in 20 program not only helped me change my habits by giving me a coach that kept me accountable but also helped to educate me to make better nutrition choices in the future.
Thank you again Fiona & this is just the beginning, I’m not going anywhere ☺️
Paris Doran
Fiona has been working with the City of South Perth over the last year.  She has developed a customised 10 week health coaching and nutrition program with us which the City now offers as part of its suite of health and wellbeing benefits.  All of the participants were overwhelmingly positive about the program.  They rated the program highly on the aspects of Fiona’s professionalism, approachability and knowledge, as well as the results they had achieved.
I would recommend Physical Nutrition to any organisation looking to develop staff benefits.
Gillean Sharp
Physical Nutrition/Fiona Murray has really helped my husband and I to achieve our weight loss and lifestyle goals. Her advice, support and knowledge during the 20 week challenge has set us up to lead a healthier and balanced life style. We thought we had enough food and exercise knowledge before meeting Fiona but she has kept us on track, motivated us and through her group classes has kept us entertained and true to our goals! Thanks Fiona!
Alison Thair
My son is 21 and has been ill for years and part of it was Diet, and we have been to many nutritionalist’s but FIONA MAKES SENSE and TELLS YOU WHY you should be careful what you eat. She changed my sons life so I sent my Daughter who had auto immune issues and she has helped her. It is now my turn so I will keep you updated. Highly recommend her she is also very understanding.
Lisa Mann
I have been with Fiona at Physical Nutrition for several months in relation to skin and gut problems and for weight loss. Fiona is knowledgeable and supportive. I am slowly losing weight and my skin and gut issues are improving. Fiona works in conjunction with my integrative medical practitioner which is a very helpful. First time I have had any positive results, a slow but worthwhile approach.
Lynne Besant


If you have any questions or issues you’d like to discuss, please don’t hesitate to contact us.