Denver's Dry Air: Are Your Magnesium Supplements Useless?

Photograph of Franklin Everett ShawBy Franklin Everett Shaw
February 16, 2026

Are you feeling sluggish, experiencing muscle cramps, or just generally “off” in Denver? It might not just be the altitude; it could be a magnesium deficiency exacerbated by our unique, dry climate. Let’s dive into why Denverites need to be extra vigilant about their magnesium levels and, more importantly, how to optimize your intake.

Denver’s high altitude and arid environment create a perfect storm for electrolyte imbalances. The thin, dry air accelerates water loss through respiration.

This increased respiration, coupled with sweat evaporation, leads to a significant loss of electrolytes, including magnesium. Magnesium is crucial for hundreds of bodily functions, from muscle relaxation to nerve function and energy production.

Think of magnesium as the conductor of your body’s orchestra. Without enough, the whole system falls out of tune.

The problem is compounded by the fact that many people already struggle to get enough magnesium through diet alone. Processed foods, depleted soil, and certain medications can all contribute to deficiencies.

Now, add Denver’s dry air and altitude to the mix, and you have a recipe for widespread magnesium depletion. So, what can Denver residents do to combat this?

First, understand that the recommended daily allowance (RDA) of magnesium (around 400mg for men and 310mg for women) might not be sufficient for those living at high altitude in a dry climate. Consider increasing your intake, but do so gradually and under the guidance of a healthcare professional.

Why gradual? Because too much magnesium at once can lead to digestive upset, like diarrhea.

Next, consider the form of magnesium you’re taking. Magnesium oxide, a common and inexpensive form, is poorly absorbed by the body.

Instead, opt for more bioavailable forms like magnesium citrate, magnesium glycinate, or magnesium threonate. Magnesium glycinate is particularly good for promoting relaxation and sleep.

Magnesium threonate is known for its ability to cross the blood-brain barrier, potentially improving cognitive function. Experiment to see which form works best for you.

Another option, particularly effective in Denver’s dry climate, is transdermal magnesium, such as magnesium oil. This involves applying magnesium chloride directly to the skin, bypassing the digestive system.

The skin absorbs the magnesium directly into the bloodstream. This is especially beneficial for those with digestive issues or who struggle to absorb magnesium orally.

To make your own magnesium oil, mix magnesium chloride flakes with warm water in a spray bottle. Apply it to your skin after showering, focusing on areas like your arms, legs, and stomach.

You might experience a slight tingling sensation initially, which is normal. If it’s too intense, dilute the solution further.

Dietary sources of magnesium are also crucial. Incorporate magnesium-rich foods into your diet, such as leafy green vegetables (spinach, kale), nuts and seeds (almonds, pumpkin seeds), beans and lentils, and whole grains.

Avocados are also a great source of magnesium and healthy fats. Consider adding a daily avocado to your diet.

Hydration is key, especially in Denver. Drink plenty of water throughout the day to help replenish lost fluids and electrolytes.

Consider adding electrolytes to your water, especially after exercise or spending time outdoors. Look for electrolyte powders or tablets that contain magnesium, potassium, and sodium.

Avoid sugary sports drinks, which can actually dehydrate you further. Instead, opt for natural electrolyte solutions like coconut water or homemade electrolyte drinks.

A common mistake people make is focusing solely on magnesium supplementation without addressing other lifestyle factors. Stress, poor sleep, and excessive caffeine or alcohol consumption can all deplete magnesium levels.

Prioritize stress management techniques like meditation, yoga, or spending time in nature. Aim for 7-9 hours of quality sleep each night.

Limit your intake of caffeine and alcohol, as they can interfere with magnesium absorption and increase its excretion.

Another pitfall is not considering potential drug interactions. Certain medications, such as diuretics and proton pump inhibitors (PPIs), can interfere with magnesium absorption.

If you’re taking any medications, talk to your doctor or pharmacist about potential drug interactions and whether you need to adjust your magnesium intake.

Consider getting your magnesium levels tested. A simple blood test can help determine if you’re deficient.

However, keep in mind that blood tests only measure magnesium in the blood serum, which represents a small fraction of the body’s total magnesium stores. A more accurate assessment may involve a red blood cell (RBC) magnesium test.

Living in Denver presents unique challenges to maintaining optimal magnesium levels. By understanding the impact of our dry climate and high altitude, and by implementing these strategies, you can ensure you’re getting enough of this vital mineral.

Don’t just blindly follow generic advice. Tailor your approach to your individual needs and circumstances.

Listen to your body and pay attention to any symptoms of magnesium deficiency. Muscle cramps, fatigue, headaches, and insomnia can all be signs that you need to increase your magnesium intake.

Remember, optimizing your magnesium levels is an ongoing process, not a one-time fix. Be patient, persistent, and proactive in taking care of your health.

By taking these steps, you can thrive in Denver’s challenging environment and enjoy all that our beautiful city has to offer. You’ll feel more energized, relaxed, and resilient.

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