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doi: 10.1080/1744666X.2024.2306220 6
For example, vitamin D deficiencies are often treated with high-dose vitamin D injections or supplements that deliver over 50,000 IU of vitamin D, which is much more than the UL ( Though most supplement bottles provide recommendations regarding how much of a vitamin to take per day, needs can vary from person to person
The short duration limits effectiveness, but sustained-release formulations or combination with longer-acting peptides could improve outcomes while maintaining natural mechanisms
Significant amounts of phthalates and their metabolites are found in urine, breast milk, blood serum, venous blood, and umbilical cord blood