Welcome to Feedmark


Condensed balancer for a calorie-controlled diet

40 reviews. 4.9 / 5
Guest - 13/05/2024 20:15
Excellent balancer without the calories for my good doer !
Guest - 01/12/2023 17:30
I can give my horse the correct balance of vitamins and minerals daily, as he is on a meagre chaff based diet.  He is a real good doer!
Julie - 25/01/2023 19:47
My Welsh X is looking fabulous on this supplement. His coat is shiny, he’s trim and full of life. Highly recommended!
Guest - 05/01/2023 13:56
Seems to work, Mac likes it and I am confident it means he gets the vitamins etc he needs
Sue - 21/11/2022 13:51
Good product, time will tell if it works
Julie - 12/10/2022 21:01
My horse is looking the best he has ever looked. SlimAid is giving him all he needs without the calories, so he’s looking incredibly well, and he’s slim!! Very happy!!
Liz - 25/04/2022 19:21
Couldnt be better .......
Moira - 30/01/2022 22:41
I've started using this product as a mineral supplement to hopefully reduce the frequency that my horse is getting abscesses in her rear hoof.  I'm on my second tub & she is now sound & has a lot more spring in her step but that could be just because her field is drying up & we haven't had rain for a couple of weeks.  She lives out 24/7.  I feed it on its own as she doesn't need extra feed & I need her to lose weight before spring.  I will continue to use for the moment especially if she stays sound when the field turns boggy after the next lot of rain.
Sophie - 26/01/2022 19:08
Haven’t been using it that long but my horse seems to be licking my hand and dirt less so I think it’s giving him the nutrients he’s been lacking
Liz - 12/01/2022 19:21
Seems like a good product so far.

End of content

No more pages to load

Nutrition Information

A highly condensed, pelleted supplement, developed to balance the daily ration by providing the essential vitamins, minerals and amino acids that may be missing from a restricted ration. Providing additional vitamins and minerals is particularly important if the horse is on restricted grazing or primarily fed soaked hay, as many nutrients are leeched out into the water.


Micronutrient Profile


Per kg

Per Scoop (40g)



63,750 mg

2,550 mg


27,150 mg

1,086 mg


13,150 mg

526 mg


9,830 mg

393 mg


3,663 mg

147 mg


1,575 mg

63 mg


6,260 mg

250 mg


25 mg

1 mg


6 mg

0.24 mg


4,995 mg

200 mg


Vitamin A

525,141 iu

21,006 iu

Vitamin D3

65,934 iu

2,637 iu

Vitamin E

26,307 iu

1,052 iu

Vitamin K

312 mg

13 mg

B1 Thiamine

312 mg

13 mg

B2 Riboflavin

275 mg

11 mg

B6 Pyridoxine

125 mg

5 mg

B12 Cobalamin




250 mg

10 mg

Pantathenic acid

250 mg

10 mg

Folic acid 

94 mg

4 mg


125 mg

5 mg


749 mg

30 mg

Amino Acids


10,000 mg

400 mg


10,000 mg

400 mg



Micronised wheat, Calcium carbonate, Sodium chloride, Dicalcium phosphate, Magnesium oxide (1.25%), binder.


NUTRITIONAL ADDITIVES (per kg): Vitamin A (Retinyl acetate, 3a672a) 525,141iu; Vitamin D3 (Cholecalciferol, 3a671) 65,934iu; Vitamin E (all rac-α-tocopheryl acetate) 26,307iu; Vitamin K3 (Menadione sodium bisulphate, 3a710) 312mg; Vitamin B1 (Thiamine hydrochloride, 3a820) 312mg; Vitamin B2 (Riboflavin, 3a825i/3a825ii) 275mg; Vitamin B6 (Pyridoxine hydrochloride, 3a831) 125mg; Vitamin B12 (Cyanocobalamin) 0.55mg; Biotin (3a880) 125mg; Niacin (3a314) 250mg; Folic acid (3a316) 94mg; Calcium Pantothenate (3a841) 250mg; Choline chloride (3a890) 749mg; Iron (Iron (II) sulphate monhydrate, 3b103) 3,663mg; Iodine (Calcium iodate anhydrous, 3b202) 6mg; Copper (Copper (II) sulphate pentahydrate, 3b405) 1,575mg; Manganese (Manganese (II) oxide, 3b502) 4,995mg; Zinc (Zinc oxide, 3b603) 6,260mg; Selenium (Sodium selenite, 3b801) 25mg; Lysine (L-Lysine monohydrochloride, 3c322) 9,990mg; Methionine (Sodium DL-methionine, 3c301/3c305) 9,990mg.


Crude protein 10.2%, Crude oils & fats 4.9%, Crude fibre 4.3%, Crude ash 28.5%, Sugar 1.9%, Starch 30.8%, Sodium 1.06%, Sodium 0.85%, Calcium 6.35%, Phosphorus 2.25%

Feeding Guide

Weight of Horse/Pony Amount per day
Up to 250kg ½ scoop
250kg - 400kg ¾ scoop
400kg - 600kg 1 scoop
Over 600kg 1 ¼ scoops
1 level (50ml) scoop of SlimAid™weighs approximately 40g

Feed supplements should be fed according to body weight. Introduce to the horse's diet gradually, splitting between feeds (when applicable).

SlimAid™is a complementary feeding stuff for equine animals. Feedmark uses nothing in the formulation of this product that contravenes competition rules.