Magnesium (Mg) is a critical macro-mineral required for nerve transmission, muscle relaxation, energy metabolism, and metabolic stability. This Magnesium (Mg) Refill Pack is designed specifically for use in a Free-Choice Mineral Buffet / Free-Choice Mineral Bar system so animals can self-select intake based on pasture conditions, stress load, lactation demand, and seasonal mineral shifts.
Sweet Medicine Farm offers Magnesium as part of a Free-Choice Mineral Buffet / Free-Choice Mineral Bar, so animals can self-select based on real-time needs instead of a one-size-fits-all approach.
Why Magnesium Matters in a Free-Choice Mineral Buffet
Magnesium plays a central role in over 300 enzymatic reactions throughout the body. It is especially important for:
• Neuromuscular function
• Muscle relaxation and coordination
• Energy metabolism (ATP activation)
• Rumen function in ruminants
• Calcium regulation
In practical herd management, this means magnesium supports:
• Calm, steady nerve function in horses and livestock
• Muscle stability during work or stress
• Healthy rumen fermentation in cattle, sheep, and goats
• Proper calcium metabolism during lactation
• Metabolic balance during rapid pasture growth
Magnesium works closely with calcium. Calcium triggers muscle contraction. Magnesium allows muscle relaxation. Without adequate magnesium, muscle tension and metabolic instability can increase.
In ruminants, magnesium deficiency during lush spring pasture growth can contribute to grass tetany. Rapidly growing forage often contains high potassium and nitrogen levels, which can reduce magnesium absorption.
Regional Trends & Mineral Interactions
Magnesium dynamics are strongly influenced by soil fertility and forage growth patterns.
• Lush spring pasture may contain lower available magnesium
• High potassium forage can interfere with magnesium uptake
• Heavy nitrogen fertilization may shift mineral balance
• Stored hay reflects the soil mineral profile at harvest
Common interactions:
• High potassium reduces magnesium absorption
• Magnesium works alongside calcium in muscle regulation
• Excess phosphorus may influence magnesium metabolism
• Stress increases magnesium demand
In high-rainfall regions, magnesium leaching from soil can occur. In early spring, rapid grass growth often dilutes magnesium concentration in plant tissue.
A self-selection mineral program allows animals to increase magnesium intake when forage conditions shift, especially during spring transitions.
What Low Magnesium Availability May Look Like
Magnesium imbalance can present quickly, particularly in ruminants. Producers may observe:
• Muscle tightness or tremors
• Nervous or excitable behavior
• Reduced feed intake
• Decreased milk production
• In severe cases, grass tetany in cattle
In horses, suboptimal magnesium may present as:
• Muscle tension
• Sensitivity to stress
• Reduced performance stability
Because magnesium interacts closely with potassium and calcium, symptoms often reflect broader electrolyte imbalance rather than isolated deficiency.
Why the Free-Choice Mineral Buffet Approach Is Different
Magnesium demand varies by forage stage, soil mineral profile, stress level, lactation, and species. Fixed premixes assume uniform need across the herd.
This product is designed exclusively for Buffet-only use within a Free-Choice Mineral Buffet / Mineral Bar system.
It:
• Supports self-selection minerals across horses, goats, cattle, bison, deer, elk, and sheep
• Allows animals to regulate neuromuscular and metabolic demand seasonally
• Avoids forced, uniform supplementation
• Integrates into a broader herd mineral program
• Fits regenerative livestock systems where forage variability is expected
Important: This is for Buffet use only. Do not top-dress or mix into feed or water.
How to Use
Placement & Setup
• Offer in a clean, dry compartment within your Free-Choice Mineral Buffet
• Keep protected from moisture, manure splash, and contamination
• Place in a calm, low-traffic area where all animals can access comfortably
• Provide adequate space to prevent dominant animals from blocking timid herd members
Mineral access is behavioral ecology. Magnesium intake should reflect biological demand rather than herd hierarchy.
Maintenance & Storage
• Refill regularly and maintain at least half-full compartments
• Refresh and stir if clumping occurs
• Maintain clean compartments to prevent cross-contamination
• Store refills in a cool, dry location away from direct sunlight
• Ensure fresh, clean water is always available
Transition Guidance
When first introducing a Free-Choice Mineral Buffet system, intake may increase during periods of lush pasture growth or metabolic stress. Intake typically stabilizes within 2–6 weeks depending on forage potassium levels and seasonal conditions.
Animals should have continuous, unrestricted access to the Free-Choice Mineral Buffet at all times so they can adjust intake based on biological demand, forage shifts, reproductive stage, and environmental stress.
Guaranteed Analysis & Ingredients
Rice Hull Carrier
Guaranteed Analysis (per lb):
Magnesium – 44.5% (Min)
Ingredients:
Magnesium Oxide, Magnesium Chloride, Rice Hulls
Salt Carrier
Guaranteed Analysis (per lb):
Magnesium – 44.5% (Min)
Salt – 17–18% (Min-Max)
Ingredients:
Magnesium Oxide, Magnesium Chloride, Salt
Packaging Options
• Resealable Bags: 0.5 lb, 1 lb, 2 lb, 5 lb, 10 lb, 15 lb
• Bulk Boxes: 25 lb
Why Sweet Medicine Farm
Sweet Medicine Farm builds minerals around animal agency and practical herd management:
• Designed specifically for the Free-Choice Mineral Buffet / Mineral Bar system
• Clear labeling for simple, consistent refills
• Built to match real pasture variability
• Supports regenerative livestock and soil-conscious producers
This is not a premix strategy. It is a mineral framework built for dynamic pasture systems and biologically responsive livestock.