B vitamins, MSM and vitamin D3 can basically be taken together. However, they perform different tasks:
-
B vitamins: important for nerves, energy metabolism and blood formation. A B complex is usually only useful if the diet is not sufficient or there is a deficiency. Especially with vitamin B6 you should not take very high amounts permanently, because too much can damage the nerves.
-
MSM (methylsulfonylmethane): is often offered as a dietary supplement for joints and mobility. The study situation is significantly weaker than for vitamins; some people get from it gastrointestinal complaints.
-
Vitamin D3: important for bones, muscles and the immune system. It is best taken with a meal that contains some fat. A permanently high dosage should not be taken without medical control, as too much vitamin D can accumulate in the body.
As a rough orientation – not as a personal dosage recommendation:
-
Vitamin D3: The DGE mentions 20 μg = 800 IU per day from one year in the absence of the body's own formation. DGE
-
B vitamins: Best in the range of normal daily requirements. Especially with vitamin B6, high-dose preparations for daily long-term intake are not a good idea; the BfR recommends for dietary supplements from 15 years of age a maximum of 0.9 mg B6 additionally per daily dose of a product. Federal Institute for Risk Assessment
-
MSM: There is no officially recommended daily intake for this, as with vitamins. Therefore, especially in adolescents, I would not recommend a certain dose of MSM on my own.
If you send me a photo or the quantities of your B complex, MSM and D3, I can tell you if the dosage is low, common or unusually high.
If additional medication is taken, taking vitamin D3, B vitamins or MSM should be discussed with the doctor or pharmacist beforehand, especially with regular medication intake or existing diseases.
The reason is that supplements can have interactions or affect the effect of drugs. In addition, depending on the drug, it may be useful to have blood values such as vitamin D or certain B vitamins controlled.