Although they are both suitable as a powdered form of supplemental magnesium, Fibroplex MagActive contains activated B vitamins, a more bioavailable or 'active' form of B vitamins, meaning that your body can utilise them more easily.

Fibroplex Plus contains a natural, plant based, calorie free sweetener called stevia.

At Metagenics, we use a specific form of high-quality magnesium known as magnesium bisglycinate. This form of magnesium is bound to the amino acid glycine, which improves its bioavailability and absorption. It is also gentler on the stomach and less likely to cause gastrointestinal upsets. However, some people may still experience loose stools or diarrhea when taking high doses of magnesium. If this happens, try reducing your dose by half, e.g. Instead of taking two serves per day, cut down to one serve. You can then gradually increase it over a week or two to find the optimal dose for you.