Blog

Research, guides, and updates on supplement interactions, timing, and stack management.

InteractionsFebruary 18, 2026

Magnesium and vitamin D: why they need each other

Vitamin D gets all the attention. But without enough magnesium, your body can't activate it. Here's how the two nutrients depend on each other.

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InteractionsFebruary 18, 2026

Zinc and iron: why timing matters more than you think

Both minerals use the same absorption pathway. Taking them together can cut absorption by up to 50%. Here's what the research says and what you can do about it.

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InteractionsFebruary 17, 2026

Calcium and iron: the absorption problem nobody mentions

Adding milk to your iron-rich meal can cut absorption by half. Calcium is one of the strongest inhibitors of iron uptake, and most people have no idea.

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InteractionsFebruary 16, 2026

Turmeric and black pepper: the 2000% absorption claim

You have probably heard that black pepper makes turmeric 2000% more bioavailable. The number is real. But the full picture is more interesting than the headline.

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TimingFebruary 15, 2026

Should you take supplements with food or on an empty stomach?

Some supplements need fat. Some need an empty stomach. Some do not care either way. Here is what the absorption research actually says.

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GuidesFebruary 14, 2026

The beginner stack: 5 supplements that actually have evidence

Most supplements have weak evidence. These five have decades of research, widespread deficiency data, and a clear reason to exist. A starting point, not a prescription.

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TimingFebruary 13, 2026

Morning vs evening: does supplement timing actually matter?

You have heard that magnesium should be taken at night and iron in the morning. But how much does timing actually affect absorption? More than you might expect.

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