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These vitamins pass through breast milk to the infant

Healthy Hair, Skin, and Nails: B vitamins are essential for maintaining healthy skin, hair and nails, promoting their growth, strength, and overall appearance

From there, recommendations are made clearly and practically.

This blog does not establish a patient-provider relationship, and the opinions expressed are solely those of the author

The NHS confirms that taking up to 2mg (2000 micrograms) daily is unlikely to cause harm, with no established upper limit in the UK

However, it is contraindicated for those with certain health conditions and is far less effective for individuals with methylation impairments