Does Vitamin D Deplete Magnesium?
In the video above, Registered Holistic Nutritionist Meg Esser answers a question that many people are asking: Does vitamin D deplete magnesium? The short answer? Not directly—but the full story is worth understanding.
The Vitamin D–Magnesium Connection
Vitamin D doesn’t 'drain' magnesium from your body, but it does rely on magnesium to be activated. In other words, your body needs magnesium to convert vitamin D into its usable form. Without enough magnesium, vitamin D can remain inactive—leaving your immune system and bone health without the support you were aiming for.
So if you’re supplementing with vitamin D but not getting enough magnesium, you might not be getting the benefits you expect.
Why Your Body Needs Magnesium (Not Just for Vitamin D)
Magnesium is involved in hundreds of biochemical processes in the body. That includes:
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Activating vitamin D
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Supporting muscle function
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Managing stress and sleep
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Regulating blood pressure and energy production
When your magnesium levels are low, your body has to ration it—prioritising critical functions like cardiovascular health over others, such as vitamin D activation. That’s why even a mild deficiency can quietly throw off your health.
Magnesium Deficiency Is Surprisingly Common
Modern food production methods, soil depletion, and food processing have significantly lowered the magnesium content in our diet. Even a balanced diet may not provide enough. This makes magnesium one of the most common nutritional deficiencies today—especially among people who also supplement with vitamin D.
Supplement Strategy: Vitamin D and Magnesium Together
To get the most out of your vitamin D—and to support your body more broadly—it’s wise to ensure you’re getting enough magnesium. Luckily, ITL Health offers several simple ways to combine these nutrients in one go:
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Vitamin D Plus – A convenient all-in-one formula containing vitamin D3, magnesium (for activation), K2 (to guide calcium to the right places), and B12 for added immune support.
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PrizMAG Plus – A clean, effective magnesium bisglycinate capsule with added vitamin D3 and K2. Ideal for those looking to support sleep, relaxation, and immunity.
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MAG365 Ionic Magnesium Citrate – A highly absorbable magnesium powder that mixes with hot water to form a bioavailable ionic solution. Pair it with a separate vitamin D supplement for flexible dosing.
Final Thought
While vitamin D doesn’t technically 'deplete' magnesium, it does depend on it. If you’re supplementing with vitamin D, be sure to support it properly with magnesium—so your body can activate and use it effectively.
Keeping your magnesium levels topped up supports not only your vitamin D, but your immune system, energy, stress levels, and overall wellbeing.
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