Calm Healthy Horses SOS
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$62.80 - Regular price
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- Sale price
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$62.80
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For acute problems, remove the horse from all green grass until he is back to normal, then gradually and carefully reintroduce grass.
Use SOS when:
- Green grass is part or all of your horse's diet
- The hay isn't ideal — meaning it's too 'rich' and still causing issues
- You're renting grazing and don't have control over grass intake
It's necessary to lower potassium intake by immediately removing from your horse's diet: short, green, growing grass and legumes like clover and lucerne; soy-based feeds and protein meals; and molassed feeds. All of these add to your horse's potassium load and make it harder for his system to keep vital minerals in balance — and he'll still be ingesting plenty of potassium (more than his daily requirement) from his 24/7 hay.
Ingredients: Contains a proprietary blend of chelated magnesium/calcium with essential co-factors, boron, phosphorus, Vitamin D, B vitamins and amino acids.
- SOS helps maintain optimal mineral balances for horses, ponies & donkeys grazing vegetative pasture
- Use in conjunction with GrazeEzy for seriously grass-affected horses
- Amounts needed will vary depending on season & weather
- Can be used to balance the calcium:phosphorus ratio when feeding grains or protein meals, especially copra meal
Directions for Use: 1 heaped tablespoon ≈ 25g.
- Small ponies – up to 25g AM & PM
- Ponies – up to 50g AM & PM
- Horses – up to 75g AM & PM
- Large horses – up to 100g AM & PM
If needed, these amounts can be fed multiple times a day for the first week, then review — adjust according to weight and need. Best results are seen when SOS is used alongside GrazeEzy and other recommended diet adjustments; once the horse is back to normal, gradually reduce the amount and keep some on hand for whenever it's needed.
If symptoms persist, consult your veterinarian. We recommend wearing a mask when dispensing.
Pack Sizes & Daily Cost:
- 1kg: 7 days supply at $9.42 per day*
- 2kg: 13 days supply at $7.69 per day*
- 4kg: 27 days supply at $5.89 per day*
*Based on approx. pricing and dosage, subject to change.
Not sure what to feed and when? Check out this guide!
Shipping Info
Shipping & Pickup Information
Flat Rate Shipping via Post Haste (Excludes Feed):
- North Island: $10 (1-2 working days)
- South Island: $20 (2-3 working days)
- Rural Surcharge: +$6 (extra time may apply)
Feed Shipping per bag via Post Haste:
- Central North Island: $14 Per Bag
- Upper North Island: $18 Per Bag
- Lower North Island: $28 Per Bag
- South Island: $55 Per Bag
- Rural Surcharge: +$6 (extra time may apply)
Orders placed before 1 PM are usually shipped the same day.
Pick-up Info
Click & Collect – Tauranga Store Only
Free 24/7 pickup via our secure after-hours collection box. Please email us if you would like to collect after hours and we will send you the instructions.
Try Before You Buy – No Obligation
We carry limited stock in-store, so we encourage customers to place orders online to secure the items they’d like to try. Simply select “Pay on Pickup” at checkout, and we’ll bring the product into store for you (excludes saddles).
Once your order arrives, you’re welcome to try it on or inspect it in person. There’s absolutely no obligation to purchase—if it’s not quite right, you can leave it with us, no problem at all. If you do decide to keep it, payment can be completed in store at the time of pickup.
Returns & Exchanges
No problem! We offer 30-day returns and exchanges on items in new, resalable condition with original packaging. Returns are issued as store credit, which never expires. See our full policy.
FAQ
All your questions, answered.

A quick guide to matching your horse's needs to the right supplement — and when to feed it.
1. Daily Foundation - Overall Health & Longevity
Feed year-roundPick one. Both contain selenium - feed the daily amount all year round.
Minerals, Vitamins & Amino Acids
The complete option — supplies every vitamin and mineral your horse needs, plus the amino acids that support overall health, immunity, top-line, and hoof quality.
Vitamins and minerals including 100% organic selenium, copper, zinc, chromium, sulphur and manganese. A good fit for horses, ponies and donkeys who don't need the extra amino acid support in Premium MVA.
A non-selenium option is also available.
2. For Grass-Related Issues
Adjust seasonallyHow much you need will vary with the season, the weather, and how much grass is around.
Helps balance the high potassium levels found in green grass. Dissolve in the water you use to wet the feed, and build up gradually following the back-label directions. Especially useful when you can't control your horse's access to grass.
For flare-ups. While you're building up GrazeEzy, feed SOS at the high dose to get more serious issues under control. Once your horse is back to normal, gradually taper the amount down and keep some on hand for next time.
An advanced formula for horses showing:
- Muscle tightness, anxiety or excitability
- Skin sensitivity, girthiness, twitching, ear-shyness or head-flicking
- Gait issues - loss of co-ordination, staggering, or dragging toes
- Hallucinating, spookiness, claustrophobia, aggressiveness, light sensitivity, puffiness or swelling
Supports nerve and muscle function for top performance. For some horses, even the small dose makes a real difference to their demeanour when grass is a challenge.
3. Add When Required
As neededExtra support for specific life stages or conditions — add alongside your daily foundation supplement.
Pure amino acids with a prebiotic - a potassium-free source of quality protein that gives any horse's overall health a boost. Good for:
- Horses recovering from a nutritional setback
- Pregnant and lactating mares, and weaned foals
- Growing, elderly, and Cushing's horses and ponies
Supplies additional calcium plus the co-factors needed to get it to the skeleton. Good for pregnant and lactating mares, growing and elderly horses, or horses grazing kikuyu grass.
Toxin-binding support from Mycofix Plus 5.E, helping manage the effects of mycotoxins in hard feed. Also provides:
- Calming benefits from chelated magnesium and Vitamin B1
- Tissue-strengthening support from silica
The thermoneutral zone is the temperature range where the body can maintain its core temperature with little to no extra energy expenditure. For humans, this range is quite narrow at 21–28 °C, but for horses it’s much broader at 5–25 °C.
This difference means we should avoid rugging horses based on how cold we feel. Over-rugging can lead to serious health issues, including metabolic problems and thermoregulatory dysfunction.
Tips for Choosing a Winter Rug Weight
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Clipped horses may need a heavier gram fill to stay comfortable.
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Remember: horses warm themselves more easily than they cool down under a rug. If unsure, choose a lighter rug.
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Check your horse regularly to make sure they are neither too hot nor too cold.
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Consider your horse’s age and natural ability to stay warm.
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As a general guide, rugging is usually appropriate when temperatures drop below 5–10 °C, but always adjust for your horse’s individual needs.
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Always ensure rugs are waterproof. A wet rug is worse than no rug at all.
This is an indicative guide only. Always take into account factors such as wind chill, your horse’s age, weight, and condition.


