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Condensed balancer for a calorie-controlled diet

27 reviews. 5 / 5
Joy - 04/09/2021 19:06
My mare finds it extremely palatable and it gives her all the vitamins and minerals she needs without the added calories (she can look at grass and put weight on!!!)
Trusted Feefo Customer - 25/08/2021 20:05
Only just starting to use this product, looking forward to seeing the outcome
Trusted Feefo Customer - 14/07/2021 20:13
Good stuff pony loves it and seems to be doing what it says 🙂
Trusted Feefo Customer - 14/08/2020 18:40
Palatable and effective balancer
Louise - 13/08/2020 07:35
Great for laminitis prone horses
Trusted Feefo Customer - 02/07/2020 16:17
Was recommended by the consultants on a stall as an alternative to Benevit. I have a shetland pony who gains weight just breathing air so i wanted her to her to still get vitamins but without having to give her a feed to put the Benevit in. So this product is perfect for her  requirements.
Gail - 02/07/2020 09:26
Supplies everything my horse needs to keep healthy
E C - 02/07/2020 01:09
My daughters horse is rather round so the Slim aid is perfect, with essential vitamins and minerals, while she is on rationed food intake.
Sue - 16/05/2020 10:03
Products I use for my pony are Slimaid to give him the balance of vitamins he needs, clarity to maintain his  respiratory system in the good order it has stayed since he was on it and turmeric I've added recently because he is 23 now and I wanted to help keep him young. They all seem to work!
Ginnie - 30/04/2020 14:31
A highly palatable supplement for my Native ponies on their restricted diet.
Nicola - 22/04/2020 23:50
Great product, sent me s free sample to check for palatablility
Trusted Feefo Customer - 22/04/2020 20:42
Angela - 27/01/2020 10:47
Very happy with purchase.
Sara - 22/01/2020 12:37
Excellent product, just what my horse needs
Trusted Feefo Customer - 13/01/2020 13:58
5 stars
Sarah - 01/12/2019 06:52
Great products
Sarah - 06/10/2019 07:22
Condensed pellets with out the calories, all the multivitamins and nutrients needed for your horse
Eleanor - 18/09/2019 16:58
Really good product for my overweight horse. Very palatable and good value for money
Trusted Feefo Customer - 21/08/2019 15:49
Excellent as they always are
Tricia - 31/07/2019 15:35
I am only a quarter way down this product slim aid so not sure yet  but we use a vitamin supplement which is excellent and Activet for my daughters older horse as she gets a bit stiff and it works wonders
Trusted Feefo Customer - 09/05/2019 23:59
quick delivery,excellent service
Trusted Feefo Customer - 08/05/2019 15:02
Trusted Feefo Customer - 17/04/2019 21:17
Not stated yet but hopeful it will do what it's bought for. Previous purchases from Feedmarks have been very good.
Karan - 05/04/2019 10:21
Love this product for my fatty connie - another great product.
Trusted Feefo Customer - 22/01/2019 22:10
Excellent palatable product ensuring those horses prone to weight gain get all the nutrients they require with no extra calories.
Sue - 13/04/2018 12:12
Fergus loves this and I know its giving him everything he needs but keeping his weight manageable.
Trusted Feefo Customer - 10/10/2017 10:56
Easy to use product.  Perfect for making sure horses on restricted diets get all their vitamins & minerals.  Much better than using a powder supplement for good doers.

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) 26,307mg; 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 9.9%, Crude oils & fats 5%, Crude fibre 2.1%, Crude ash 29.7%, Sugar 1.9%, Starch 30.8%, Sodium 1.06%, Calcium 7.38%

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.