This is why supplement labels should never be interpreted as meaning that taking several times the recommended amount will produce greater benefits.
Combining Supplements Can Accidentally
Increase Your Dose
People sometimes take:
- a multivitamin
- a “hair, skin and nails” product
- an immune supplement
- a separate vitamin D product
- an energy supplement
without realizing several products contain the same vitamins.
That can unintentionally push the total daily intake far above recommended amounts.
Before starting several supplements, compare the labels and calculate the total
amounts of overlapping nutrients.
People With Liver or Kidney Disease Need Extra Caution
If liver or kidney function is already reduced, the body may process or eliminate certain substances differently.
increase the risk of:
- nutrient accumulation
- medication interactions
- electrolyte abnormalities
- worsening kidney function
- liver injury
People with chronic kidney disease are also sometimes advised to limit or avoid certain minerals depending on their blood results and stage of disease.
Supplement choices in this situation should be individualized rather than based on internet recommendations.