For calm and relaxation
  • with organic magnesium & selenium plus vitamin B & vitamin E
  • for reduced stress reactions
  • cereal-free, pelleted diet feed
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marstall Magnesium is a high quality feed supplement to combat magnesium deficiency and ensure calm nerves, flexible muscles and rapid recovery after exertion.

marstall Magnesium helps the horse to relax, both mentally and physically.

If the body is short of magnesium, this can cause tension, anxiety and cramps. Targeted magnesium supplementation can counter these consequences, because magnesium helps the muscles to relax. marstall Magnesium contains the organic form, magnesium fumarate, which is particularly easily absorbed by the body, together with vitamins B and E, calcium and selenium. This combination helps to break down free radicals and optimise the energy metabolism and the oxygen supply to the muscle cells.

marstall Magnesium calms the nervous system by means of organic magnesium compounds and supports rapid recovery after exertion.

Feed supplement for horses

Composition of marstall Magnesium

Grass, dried at high temperature (from the Allgäu), extracted linseed shred, brewers’ grains, magnesium oxide (16.30 %), calcium carbonate, brewer‘s yeast, magnesium fumarate (1.40 %)

EADCM conform acc. FEI.

Nutritional analysis and energy per kg of marstall Magnesium

Crude protein

13.80 %

Crude fibre

7.00 %

Crude fat

6.90 %

Crude ash

40.40 %


8.20 %


8.50 %


0.40 %


0.10 %

Nutritional additives per kg of marstall Magnesium

Vitamin E

42,000.00 mg

Vitamin B1

600.00 mg

Vitamin B12/Cyanocobalamin

83,000.00 mcg

Selenium in organic form from Saccharomyces cerevisiae CNCM I-3060 (inactivated selenium-enriched yeast)

12.50 mg

Feeding recommendations for marstall Magnesium …

… for regularly nervous, restless or tense horses

over a period of approx. 2 to 3 months or permanently

Small horse/pony

approx. 20 g = ~ ¾ scoop/day


approx. 30 g = ~ 1 ¼ scoops/day


approx. 40 g = ~ 1 ¾ scoops/day

… for stressful situations (e. g. competitions)

5 days before until 2 days after

Small horse/pony

approx. 40 g = ~ 1 ¾ scoops/day


approx. 50 g = ~ 2 scoops/day


approx. 60 g = ~ 2 ½ scoops/day

1 level measuring scoop = approx. 25 grams

Feeding advice

Feed supplement for horses to reduce stress reactions.

Our recommendations assume a roughage intake (hay) of 1.5 kg per 100 kg body weight per day.

We generally recommend seeking specialist advice before feeding a feed supplement.

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