Is 400mg of magnesium a day too much?

400mg is within the adult tolerable upper limit for supplemental magnesium (350mg is the label limit for some forms, so check with a doctor). It suits adults with low dietary intake; people with kidney issues or on other medications should ask a clinician first.

Why four magnesium forms instead of one?

Bisglycinate is gentle on the stomach, citrate and malate are well absorbed, and taurate is often chosen for calm and sleep support. Blending them spreads the dose across forms rather than relying on one.

How long does one bottle last?

90 tablets at two per day is a 45-day supply. At $22.89 at Amazon as of November 4, 2026, that is about 51 cents a day.

Can I take it on an empty stomach?

Citrate and malate can loosen stools or cause mild stomach upset in some people. Taking the two tablets with a meal reduces that risk.

Is it cheaper anywhere else?

As of November 4, 2026, Amazon is the only store listing it new, at $22.89. There is no second price to compare, so watch for a drop rather than a store switch.

Where is the Prowise Advanced 4 in 1 Magnesium Complex cheapest?

At Amazon, for $22.89, as of our latest check.

Prowise Advanced 4 in 1 Magnesium Complex

Best price now

$22.89at AmazonObserved Nov 3, 2026, 11:20 AM

Prices are checked against each store and labelled with when.

Visit Amazon

Ask our shopping agent

Our take on the Prowise Advanced 4 in 1 Magnesium Complex

Prowise Advanced 4 in 1 is a 90-tablet magnesium supplement combining four forms: bisglycinate, citrate, malate and taurate, at 400mg elemental magnesium per two-tablet serving. The blend aims to cover both calming and energy-related uses in one bottle rather than picking a single form. It is non-GMO and free of gluten, wheat and lactose. As of November 4, 2026, the best new price is $22.89 at Amazon, the only store listing it new, so there is no cross-store spread to compare.

Best forAdults who want one magnesium bottle instead of several