Is it necessary to discontinue Blackmore (generic name not specified) vitamins due to green urine?

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Last updated: February 27, 2025View editorial policy

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From the Research

If you're taking Blackmores vitamins and notice your urine turning green, this is typically not a cause for concern and you generally don't need to stop taking the supplement. This color change is a common side effect of B vitamins, particularly vitamin B2 (riboflavin), which are often included in multivitamin formulations. When your body processes these vitamins, the excess that isn't needed is excreted through urine, sometimes causing this bright yellow-green color. This is actually a sign that your body is absorbing the vitamins and eliminating what it doesn't use. The color change is harmless and temporary, usually lasting only while you're taking the supplements. However, if you experience other concerning symptoms like pain, burning sensation during urination, or unusual odor, you should consult with a healthcare provider as these could indicate other issues unrelated to the vitamins.

Some studies have reported adverse effects of high doses of vitamins, such as hypervitaminosis and intoxication 1, but these are typically associated with excessive intake, not normal supplementation. Additionally, there is limited evidence of health benefits related to nutraceutical or supplement use in well-nourished adults, and some products have the potential to produce significant toxicity 2. It's also important to note that pharmacists, as frontline healthcare professionals, may be asked to provide advice about these products, and they selectively use and recommend certain vitamins and supplements 3. However, the most recent study on the toxicity of herbs, vitamins, and supplements highlights the importance of consumer awareness and the potential for significant toxic potential 4.

In terms of specific recommendations, it's essential to follow the guidance of a healthcare provider and to be aware of potential interactions with other medications or underlying health conditions. Some key points to consider include:

  • The color change is usually harmless and temporary
  • Excessive intake of vitamins can lead to adverse effects
  • Pharmacists may recommend certain vitamins and supplements, but it's crucial to consult with a healthcare provider for personalized advice
  • Consumer awareness is essential to minimize the risk of toxicity or adverse interactions.

Overall, while the color change may be alarming, it's generally not a cause for concern, and you can continue taking the supplement unless you experience other concerning symptoms.

References

Research

Adverse effects of antioxidative vitamins.

International journal of occupational medicine and environmental health, 2012

Research

Adverse Effects of Nutraceuticals and Dietary Supplements.

Annual review of pharmacology and toxicology, 2018

Research

Toxicity of Herbs, Vitamins, and Supplements.

Advances in chronic kidney disease, 2020

Professional Medical Disclaimer

This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.

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