Which minerals does your body actually need, and are you getting enough? Download this free guide for a practical, mineral-by-mineral breakdown of what each one does, how to spot a deficiency, and how to supplement safely.

Colorful array of mineral-rich foods including seafood, nuts, seeds, cheese, and fresh produce

Most people think about vitamins when they think about supplements. But minerals like magnesium, zinc, and selenium are just as important for how you feel day to day, and they’re some of the most commonly overlooked gaps in a modern diet. The tricky part is that not all supplement forms are created equal, and some minerals need to be taken at the right time or paired with the right cofactors to actually work. This guide makes all of that simple.

This free guide by IMA Senior Fellow Dr. Kristina Carman walks through 14 essential minerals one by one. For each one, you’ll learn what it does in your body, how to recognize a deficiency, which supplemental forms are worth your money, and what to watch out for when combining minerals with common medications.

Download it below 👇

Minerals 101: A Practical Guide to Minerals for Better Health - PDF cover

📖 What’s in the Guide?

This guide covers 14 essential minerals in a concise, patient-friendly format, including:

  1. ⚡ Energy, Bones, and Essential Foundations
  2. 🛡️ Immune Defense and Thyroid Health
  3. 🧠 Blood Sugar, Brain Health, and Metabolism
  4. 🦴 The Overlooked Minerals
  5. ⚠️ Interactions and Safety

1. ⚡ Energy, Bones, and Essential Foundations

The guide opens with the minerals your body relies on most heavily for daily function. This section covers:

  • Why magnesium deficiency may affect up to 75% of the population, and which of the six common forms to choose based on your goals
  • How iron is a double-edged mineral where both deficiency and excess cause harm, and why testing before supplementing is essential
  • Why calcium supplementation without vitamin K2, D3, and magnesium can do more harm than good
  • How potassium works in balance with sodium and magnesium to regulate blood pressure, heart rhythm, and muscle function
  • Food sources, signs of deficiency, and optimal dosage ranges for each mineral

2. 🛡️ Immune Defense and Thyroid Health

Four minerals play interconnected roles in immune function and thyroid metabolism. This section covers:

  • Why zinc and copper must always be supplemented together, and the ratio that keeps them in balance
  • How selenium is the thyroid’s most concentrated mineral, essential for converting T4 to active T3
  • Why iodine remains one of the most globally deficient nutrients despite its critical role in thyroid hormone production
  • The role copper depletion plays in modern nutrition, driven by widespread zinc supplementation

3. 🧠 Blood Sugar, Brain Health, and Metabolism

The guide explores minerals that support metabolic and neurological function, including some you may not have heard of. This section covers:

  • How chromium enhances insulin sensitivity and why high-sugar diets significantly deplete it
  • Why low-dose lithium, distinct from pharmaceutical lithium, shows remarkable neuroprotective properties at trace amounts
  • Vanadium’s insulin-mimicking properties and its potential role in glucose regulation as part of a broader metabolic protocol
Woman taking a mineral supplement with a glass of water

4. 🦴 The Overlooked Minerals

Some of the most impactful minerals are the ones least discussed in mainstream health conversations. The guide details:

  • How boron enhances your body’s ability to use calcium, magnesium, and vitamin D, yet most diets are significantly low due to poor soil quality
  • Why silica is a critical structural mineral for collagen, elastin, and bone matrix, and why food sources alone are poorly absorbed
  • Molybdenum’s profound role in detoxification, particularly for those sensitive to sulfites or undergoing candida protocols

5. ⚠️ Interactions and Safety

The guide closes with essential safety guidance that every supplement user should read. This section covers:

  • Common medication interactions, including diabetes drugs, thyroid medications, PPIs, and oral contraceptives
  • Which minerals compete for absorption and need to be separated by at least two hours
  • Special populations that require extra caution, including pregnancy, kidney disease, and children
  • Why a “test, don’t guess” approach to mineral supplementation protects against both deficiency and excess
Assortment of nutrient-dense whole foods rich in essential minerals

💡 Your Starting Point

Minerals are foundational to how your body produces energy, fights infection, builds bone, regulates mood, and manages blood sugar. Yet most people are deficient in at least one, and many are deficient in several. The good news is that targeted, informed supplementation can make a meaningful difference.

Each mineral in this guide is presented in the same practical format: what it does, how to spot a deficiency, which foods are richest in it, and which supplemental forms and dosages are supported by research. Dr. Carman also covers the interactions that trip people up most often, like which minerals compete for absorption and which medications deplete your stores.

Download it, share it with someone who could use it, and use it as a starting point for a conversation with your practitioner.

Dr. Kristina Carman

About the Author

Dr. Kristina Carman is a registered nutritional therapist, naturopathic doctor, and Senior Fellow in Nutritional and Holistic Health at the Independent Medical Alliance. Based in South Carolina, she brings a “leave no stone unturned” approach to functional medicine—supporting patients with accessible, sustainable care rooted in food, lifestyle, and integrative healing. Explore more of Dr. Carman’s work here or read her full bio here. Your support makes Dr. Carman’s voice—and independent medical insight like this—possible. Donate today.