Every mineral plays a specific role in the body — from metabolism and digestion to immune regulation, reproduction, and structural integrity.

In a Free-Choice Mineral Buffet system, minerals are offered individually rather than blended together. This allows horses, cattle, goats, sheep, and other livestock to adjust intake based on real-time biological needs instead of a fixed premix formula.

Understanding what each mineral does helps producers make informed decisions about long-term herd health and mineral balance.

If you are new to self-selection feeding, read Why Free-Choice Minerals Are Different.

The SMF Mineral Guide

Diagram of the Sweet Medicine Farm Free Choice Horse Mineral Buffet system showing the full range of minerals offered for self-selection

Understanding the Sweet Medicine Farm Mineral Wheel

At first glance, this chart may look complex. It is not meant to overwhelm — it is meant to simplify what actually happens inside the body.

The Sweet Medicine Farm Mineral Wheel is a focused visual guide to the mineral relationships that matter most in practical herd management. Instead of listing minerals individually, this wheel shows how they interact with each other.

Because minerals do not work alone.

What You’re Looking At

• Each circle represents one mineral.
• The solid blue arrows show where minerals directly compete with each other.
• The dotted arrows show supportive or modifying relationships.
• The outer positioning shows how minerals influence balance across the whole system.

When one mineral rises too high or falls too low, it can push or pull other minerals with it. That is why mineral balance is not just about “adding what’s missing.” It is about understanding how everything shifts together.

For example:

  • High iron can interfere with copper absorption.

  • Excess potassium can impact magnesium balance.

  • Calcium and phosphorus must remain in proper proportion.

  • Zinc and copper compete for uptake.

These are not theories — they are well-documented biological relationships. The wheel simply makes them visible.

Why This Wheel Is Different

Most mineral charts attempt to show every possible interaction. The result is usually a tangled web that is technically complete but practically unusable.

This wheel is intentionally focused.

It highlights the interactions that most commonly create real-world imbalance in pasture-based and forage-driven systems. It removes unnecessary noise and centers the relationships that producers actually encounter:

  • Soil mineral variability

  • Stored forage seasons

  • Iron-heavy water

  • High potassium pasture

  • Copper-antagonist environments

  • Sulfur interactions

  • Trace mineral competition

Rather than mapping every theoretical pathway, this wheel concentrates on the relationships that influence herd outcomes.

It is designed for clarity, not academic complexity.

Why This Matters in a Free-Choice System

In a traditional premix, all minerals are blended into fixed ratios. Animals must consume them together whether the ratios match their current needs or not.

But mineral demand shifts constantly:

  • Growth

  • Pregnancy

  • Lactation

  • Weather stress

  • Forage quality

  • Workload

  • Soil region

When minerals are offered individually in a Free-Choice Mineral Buffet, animals are able to adjust intake in response to these shifting relationships.

If copper demand increases, zinc intake may adjust.
If magnesium needs rise during lush pasture season, intake patterns change.
If balance is restored, preference typically stabilizes.

The wheel illustrates why this self-regulation works: minerals move in relationship to one another.

Balance is dynamic, not static.

A Practical Way to Read This Chart

Do not read it as a chemistry diagram.

Read it as a reminder:

  • Mineral systems are interconnected.

  • Imbalance rarely exists in isolation.

  • Forcing fixed ratios ignores interaction.

  • Observation and flexibility restore balance.

This chart is a visual explanation of why Sweet Medicine Farm supports a Free-Choice Mineral Buffet instead of a one-size-fits-all premix.

It helps you see mineral balance as a system — not a list.

 

Macro Minerals (Required in Larger Amounts)

Calcium (Ca)

Supports bone structure, teeth, muscle contraction, nerve signaling, and milk production. Calcium works closely with phosphorus and vitamin D to maintain skeletal strength and metabolic stability.

Phosphorus (P)

Essential for bone development, energy metabolism (ATP production), reproduction, and cellular repair. Imbalance between calcium and phosphorus can affect growth and structural development.

Magnesium (Mg)

Supports muscle relaxation, nerve function, enzyme activity, and metabolic regulation. Magnesium plays a key role in preventing muscle tension and supporting calm behavior in horses and livestock.

Potassium (K)

Important for hydration balance, muscle function, and cellular communication. Potassium demand may increase during heat stress or heavy work.

Sodium (Na)

Regulates fluid balance, nerve transmission, and muscle contraction. Sodium works alongside chloride and potassium to maintain electrolyte balance.

Salt (NaCl)

Provides sodium and chloride, supporting fluid balance, nerve signaling, muscle contraction, and stomach acid production. Salt serves as a foundational electrolyte component in pasture-based mineral programs.

Trace Minerals (Required in Smaller Amounts, But Critical)

Zinc (Zn)

Supports immune function, hoof and skin integrity, reproductive health, and enzyme activity. Zinc plays a major role in tissue repair and structural strength.

Copper (Cu)

Essential for connective tissue formation, pigmentation, iron metabolism, and immune support. Copper deficiencies can affect coat quality and skeletal development.

Selenium (Se)

Works as an antioxidant mineral supporting muscle health, immune function, and reproductive performance. Selenium must be carefully balanced due to narrow safety margins.

Iodine (I)

Supports thyroid function, metabolic regulation, and growth. Iodine plays a central role in hormonal balance.

Manganese (Mn)

Involved in cartilage formation, reproductive health, and enzyme systems. Important for skeletal development in growing animals.

Cobalt (Co)

Required for vitamin B12 synthesis in ruminants. Supports energy metabolism and red blood cell production.

Iron (Fe)

Necessary for oxygen transport through hemoglobin. Iron works in balance with copper and other trace minerals.

Molybdenum (Mo)

Involved in enzyme systems and sulfur metabolism. Must be balanced carefully as excess can interfere with copper utilization.

Boron (B)

Supports bone metabolism and mineral utilization. Emerging research continues to explore its broader biological roles.

Silicon (Si)

Involved in connective tissue development and structural matrix formation, including collagen support.

Vitamins & Functional Additions

Vitamin B-Complex (CB)

Supports energy metabolism, nervous system function, and rumen microbial activity in ruminants. B vitamins play a central role in cellular energy production and metabolic regulation.

Vitamin ADE (V4) – Complex

Fat-soluble vitamins that support immune function, reproduction, and structural integrity when forage quality shifts or stored feed is the main ration.

Vitamin A: Supports immune readiness, vision, reproductive function, and epithelial tissue health.
Vitamin D: Regulates calcium and phosphorus absorption, supporting bone development and metabolic balance.
Vitamin E: Acts as an antioxidant supporting muscle health, immune response, and cellular protection.

Sulfur (S)

Supports amino acid formation, rumen function, and structural protein synthesis.

Functional Mineral Buffers & Balancers

Acid Neutralizer (OH)

Formulated to help balance dietary mineral interactions and support rumen and digestive stability when excess alkalinity is present in forage or water sources.

Alkaline Neutralizer (Cl)

Designed to help stabilize mineral interactions and support pH balance when excess acidity may affect intake behavior or rumen function.

Why Individual Mineral Access Matters

When minerals are blended together, animals cannot increase intake of one mineral without increasing all of them.

A Free-Choice Mineral Buffet separates each mineral, allowing livestock to:

• Correct deficiencies
• Adjust for seasonal forage shifts
• Respond to pregnancy or lactation demands
• Adapt to stress or workload
• Stabilize intake over time

Mineral needs are dynamic. A flexible system respects that biological variability.

Mineral Balance Over Time

In free-choice systems, intake patterns often fluctuate initially. As mineral imbalances correct, consumption typically stabilizes.

This is not forced intake — it is regulated intake.

Providing individual mineral access allows the herd to participate in restoring balance rather than relying solely on average-based formulations.

Build Your Free-Choice Mineral Program

Learn why self-selection works → Why Free-Choice Minerals Are Different

See how to set up your mineral bar → How to Use a Free-Choice Mineral Buffet

Or implement the complete system → 21 Mineral Free-Choice Mineral Buffet Kit