How to tell which deficiency is wrecking your energy (and what to ask for).
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vitamin B12
+2
Taking a look at calcium intake around the world to understand how it affects our health.
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science spotlight
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strength training
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Estrogen and progesterone don't just shape mood and cycles. They also change how your body uses creatine.
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What the research actually says about absorption, purity, and effectiveness.
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supplementation
Why vitamin B12 deficiency is so hard to diagnose, how it damages the brain and nerves (not just the blood), and why standard tests often miss it.
Jan 26, 2026
3 min read
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