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Selenium is needed in tiny amounts — just 55 mcg per day — but it drives thyroid hormone activation, shields DNA from oxidative damage, and anchors the body's most powerful antioxidant enzymes. An estimated one billion people worldwide fall short.

A single can of sardines packs more omega-3, vitamin D, B12, selenium, and calcium than most supplement stacks, for under $3. The sardinemaxxing trend has a serious nutritional case behind it.

A squeeze of lemon on spinach can 6x your iron absorption. The same meal delivers entirely different nutrition depending on what you eat alongside it. Here are 7 evidence-backed food pairings that measurably boost what your body actually absorbs.

Boiling broccoli for 10 minutes destroys 77% of its glucosinolates. But cooking tomatoes doubles their bioavailable lycopene. The way you cook matters as much as what you cook.

Up to half of Americans fail to meet the daily magnesium requirement, yet this mineral participates in over 300 enzymatic reactions. Here's how to close the gap with food, not pills.

Zinc lozenges at the first sign of a cold can reduce its duration by a third, yet 15% of the global population is zinc-deficient. Here's how to fix that with food.

Americans spend $60B+ per year on supplements, but studies show most healthy adults don't benefit. Here's what the science says about food vs. pills.