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Alethea Mills Nutrition- Gold Coast Nutritionist

BHSc Nutritional and Dietetic Medicine

RED-S and Low Energy Availability: the commonly overlooked syndrome in sport.

April 6, 2026 by aletheam Leave a Comment

If you train regularly, eat “well,” and still feel like your body isn’t responding the way it should, this is something that should be on your radar. Relative Energy Deficiency in Sport (RED-S) is a common thing I see in clinic and even though it’s more well known now than years ago, most people aren’t sure how to assess if it’s something that is affecting them. It can be tricky as it’s not extreme, not always intentional and it can affect the weekend warrior just as easily as it can affect an elite athlete. What is RED-S? RED-S occurs when the body doesn’t have enough energy available to support both exercise and normal physiological function. It was once known as the Female Athlete Triad, which focused on: We now know ...

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Filed Under: Exercise, Health, Nutrition, Sports Nutrition, Uncategorized Tagged With: athlete nutrition, red-s, sports nutrition

Be a Marathon Rockstar: Fuel Your Success from Start to Finish

June 12, 2023 by aletheam Leave a Comment

I work with a range of running levels from novice to the well-seasoned ultra-athlete. This blog has information for all runners; however, it is intended for the newer marathon runners. I ran my first half marathon with no knowledge of running, nutrition or recovery. I went in 100%, I trained at 100%, every run was at effort, I thought if I ran every run as fast as I could, I would naturally start to run faster, wow, was I wrong! I was under fuelling, not intentionally, I truly believed I was eating well at the time. I trained with an old school phone (way before owning a Garmin) that shouted out when I had hit another “k” that I for some strange reason decided to not take to the event. This all led to a bucket load of excitement at the ...

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Filed Under: Exercise, Health, Lifestyle, Sports Nutrition Tagged With: athlete nutrition, marathon nutrition, marathon training, performance & recovery, sports nutrition

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I'm Alethea, a Gold Coast based Clinical Nutritionist with a Bachelor's Degree of Health Science in Nutritional and Dietetic Medicine. I'm passionate about helping people rediscover the spark of vitality deep within.

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  • RED-S and Low Energy Availability: the commonly overlooked syndrome in sport.
  • Tart Cherry Juice: The Natural Sleep and Recovery Booster for Active Women and Perimenopause
  • Gut Friendly Bliss Balls
  • Maximise Your Race: The DIY Sweat Test for Athletes
  • Be a Marathon Rockstar: Fuel Your Success from Start to Finish

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LATEST POSTS

RED-S and Low Energy Availability: the commonly overlooked syndrome in sport.

Tart Cherry Juice: The Natural Sleep and Recovery Booster for Active Women and Perimenopause

Gut Friendly Bliss Balls

Maximise Your Race: The DIY Sweat Test for Athletes

aletheamills_nutrition

🌱| ℕ𝕦𝕥𝕣𝕚𝕥𝕚𝕠𝕟𝕚𝕤𝕥 (𝔹ℍ𝕊𝕔ℕ𝕦𝕥𝕄𝕖𝕕)
➡️ Helping active people optimise energy, digestion & performance with nutrition & functional testing.

Absolute legend 🙌🏼 Run like a girl they say Absolute legend 🙌🏼 Run like a girl they say 🤔
Hallelujah ✨ Hallelujah ✨
Antibiotics are sometimes necessary (I’ve just b Antibiotics are sometimes necessary (I’ve just been on a course after emergency dental surgery 😩), but they don’t act in isolation.
They reduce microbial diversity, disrupt beneficial species, and can impact things like short-chain fatty acid production which plays a big role in gut barrier/lining, immune function and inflammation regulation.

This is why some common symptoms like diarrhoea, bloating, or changes in digestion occur while taking them and can still happen when they are finished. Even without symptoms there can be changes in the microbiome.

I always say it is an absolutely necessity, do not take antibiotics if not 100% necessary and always finish the course when you do have them. 

What I recommend to support you gut:

💊 Saccharomyces boulardii to reduce antibiotic-associated diarrhoea + ensure probiotics are taken at least 2hrs away from antibiotics.
🦠 Feed the beneficial microbes with a fibre like PHGG + polyphenol-rich foods
🫐Use targeted multi-strain probiotics during/after antibiotic use + increasing plant diversity
🥑Include nutrients to support the gut lining (glutamine, zinc carnosine, vitamins A + D, anti-inflammatory support)

It doesn’t need to be excessive but offering your gut no support while using antibiotics will lead to longer term gut issues.The microbiome is resilient, but it does need support.

If your gut tends to struggle after antibiotics, or symptoms linger longer than they should, that’s usually a sign you need a more personalised approach.

Feel free to reach out if you want support with that 💚
Snippet of a beautiful weekend away to celebrate a Snippet of a beautiful weekend away to celebrate a birthday of a good friend. I am so glad we crossed paths all those years ago  when studying @anappleaday_nutrition 🤍

Three nights in Hobart with good friends, food, wine and a cheeky 15k run. Cannot recommend Tolpuddle and Mona enough 🙌🏼

@andrew_raines_  @wellnourished @anappleaday_nutrition a wonderful time 🙏🏼🙏🏼
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