Vitamins & Minerals

Fish oil is one of the biggest supplement categories in the world, and also one of the most oversold. The two omega-3 fatty acids that matter in fish oil are EPA and DHA — and whether a supplement is worth buying comes down almost entirely to how much of those two it actually delivers, and […]

Zinc is an essential mineral involved in immune function, wound healing, taste and smell, and hundreds of enzyme reactions. It’s also a supplement where the gap between the right dose and too much is unusually narrow — and where taking “extra for immunity” can quietly backfire. How much zinc do you need? The Recommended Dietary

Vitamin B12 is essential for nerve function, red blood cell formation, and DNA synthesis — and it’s unusual among vitamins in two ways: deficiency is common in specific, predictable groups, and toxicity is essentially a non-issue. That combination makes B12 one of the most clearly justified supplements for the right people. Who actually needs B12

Magnesium is one of the most commonly supplemented minerals, involved in over 300 enzyme reactions in the body — including muscle and nerve function, blood sugar regulation, blood pressure, and bone health. It’s also one of the most confusing supplements to shop for, since it comes in half a dozen different forms with different uses.

Vitamin D supplements come in two forms — D2 (ergocalciferol) and D3 (cholecalciferol) — and the label rarely explains the difference. Both raise vitamin D levels in the blood, but they don’t behave identically, and the difference matters more at higher doses than at typical everyday doses. Here’s the short version before we get into