$7.00
A 14-page guide that lays every common form of magnesium, zinc, iron and calcium side by side, with elemental %, absorption, tolerability and a plain verdict for each, plus what helps or blocks absorption, how much you need, and a 60-second method to choose. Based on NIH and FDA data. Instant PDF.
Description
Two bottles say 400 mg of magnesium.
One costs half as much. You buy the cheaper one, and most of it passes straight through you, because it was magnesium oxide, which is barely absorbed. The word in brackets after the mineral name decided that, and almost nobody reads it.
Mineral Forms Compared is a 14-page reference that settles it. For the four minerals people buy most, magnesium, zinc, iron and calcium, it lays every common form side by side, then goes further than any label: what helps or blocks absorption, how much you actually need, what the fine-print words mean, and the exact one-minute method to choose on the shelf.
Inside you get:
→ A plain explanation of the two numbers that decide everything: elemental amount (how much is actually the mineral) and absorption (how much you take up)
→ Four full comparison charts, magnesium, zinc, iron and calcium, each with elemental %, absorption, tolerability, best use and a plain verdict for every common form
→ An absorption pairing chart showing what helps and what blocks each mineral (vitamin C, coffee, calcium, phytates and more)
→ How much you actually need: the official adult daily amounts and safe upper limits for all four
→ Label words decoded: a glossary of chelate, bisglycinate, buffered, proprietary blend and the rest
→ Where the big number misleads: the oxide trick, compound weight dressed as the dose, and the honest-label test
→ The 60-second shopping method, with a worked example plus a one-line quick pick for every mineral.
Every figure is based on official government health sources (NIH Office of Dietary Supplements and the FDA), listed in a Sources box at the back. Written in plain language by someone who reads labels for a living.
Pairs perfectly with our free tools: turn any label into the real elemental amount with the Elemental Mineral Calculator, and compare two products by true value with the Cost Per Dose Calculator.
Instant PDF download. Educational only, not medical advice.
