Magnesium helps
muscle function

How does magnesium work?

Magnesium promotes the proper functioning of muscles and soothes nerve impulses. Magnesium also helps to keep bones strong and joints flexible, acting alongside other minerals such as calcium and phosphorus.

This mineral is also involved in different processes of the human body including energy metabolism and the activation of enzymes.

Magnesium in the diet

Magnesium is present in almost all foods, but in different quantities. Important sources of magnesium are green vegetables, nuts, cocoa, soybeans, and shrimp. Other sources of magnesium are bread, cheese and dairy products. Even water can make an important contribution to the contribution of magnesium, depending on its chemical composition.

Lack of magnesium

In the event of a prolonged deficiency of magnesium, you may experience occasional discomfort such as fatigue, stomach cramps, muscle aches and / or irritability of the nerves and muscles. Following surgery weight loss, muscle pain can occur with greater frequency, due to the reduced consumption and / or food absorption in the body. Losing weight burns off and loses fat, but it also reduces muscle mass, which explains why muscle pain may occur.

Excess magnesium

The safe upper limit for intake of magnesium from supplements and fortified foods is equal to 250 milligrams per day. The intake of these products may result in an excess of magnesium in the body. The effects produced by excessive consumption of magnesium are not serious, and mainly limited to mild diarrhoea.

Following the placement of a gastric band or sleeve

If you underwent surgery for the placement of a gastric band or sleeve it is important to take a daily amount of magnesium of around 375 milligrams. This value corresponds to 100% of normal requirements Recommended Daily Allowance.

Following gastric bypass surgery, duodenal switch or biliopancreatic diversion procedures

Following gastric bypass surgery, biliopancreatic diversion or duodenal switch procedures, the recommended daily intake (RDA) is slightly higher because of changes made to the small intestine during surgery. Following an intervention, in fact, the absorption of magnesium is more difficult and for an adequate intake it is necessary to take a greater amount of this mineral. The recommended daily intake (RDA) ranges from 150-200%, or 562 -750 milligrams.

Magnesium supplements

In addition to specific supplements tailored towards those who have undergone gastric bypass, duodenal switch or biliopancreatic diversion procedures, a magnesium Supplement is also advisable. Magnesium citrate used in supplements is too in volume and cannot be combined in the same capsule as other supplements. FitForMe’s WLS Optimum supplement has 8% of the RDA of magnesium, while WLS Forte does not contain magnesium.

FitForMe offers a magnesium supplement to help manage this shortfall, based on magnesium citrate so the body can more easily absorb the mineral.

FitForMe Newsletter

Stay up to date with everything at FitForMe – Subscribe to our Newsletter

Our Products

Check out the full FitForMe range here


Do you have any questions about magnesium or other topics? Contact our Customer Support team or send an email to

Order a free starter kit!

Did you know you can request a free starter pack of FitForMe weight loss surgery supplements? Click here to request it now for free!