Happy Horse Nutrition13 Okt 2025

22. Horse Nutrition Q&A: Omega-3, PSSM, and Anhidrosis

Join Dr. Nerida and Orla for a rapid-fire Q&A session (well, maybe not rapid fire, but fast moving!) tackling listener questions on omega-3 supplementation, PSSM tying up, and solving anhidrosis in hot climates. Complete with ‘Friends’ references and an ‘Irish joke’, this episode also manages to deliver some practical, science-based answers to real-life horse feeding challenges.

Dr. Nerida reveals the research based, post-work rehydration formula (90 grams salt to 10 liters water) that keeps horses drinking after competition and why it is also critical to offer fresh water! She explains why excess protein depletes electrolytes through urination, and shares dramatic case studies of "problem horses" transformed through simple dietary changes. Learn why that chronically bucking warmblood might just be asking for a PSSM-safe diet.

Plus learn about hemp seed benefits, cod liver oil vitamin A toxicity risks, why vitamin A and E disappear from hay after 12 months, and the reason horses won't drink even though you know they are dehydrated.

Key topics covered in this episode include:

Fish oil vs flaxseed oil: when each is best for a horse’s omega-3 needs
Why fish oil is better with high grain diets
PSSM diet management: recognizing subtle symptoms like chronic bucking and laziness
How to feed PSSM horses safely without expensive genetic testing
Anhidrosis causes: the protein and electrolyte connection in hot climates
Critical electrolyte requirements: 70 grams PLUS daily in tropical conditions
Why lucerne/alfalfa has caused entire stables to tie up in humid weather

We would love you to subscribe to the Happy Horse Nutrition podcast for more expert advice on feeding horses for optimal health and performance.

Discover and download the MyHappy.Horse app: https://www.myhappy.horse

And ask your nutrition questions 24/7 with Dr Nerida AI: https://www.myhappy.horse/nerida-ai

If you enjoyed this episode, please leave us a rating and review!

It really helps us to get grounded, science-based information to horse owners… and it is their horses who benefit the most! ❤️

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