Peptides are short chains of amino acids, the same building blocks that make up proteins
Contact your healthcare provider if you experience: Persistent or worsening taste changes that do not improve after 2-3 weeks or that progressively worsen despite self-management strategies Complete loss of taste (ageusia), which may indicate a more serious neurological or systemic issue Taste changes accompanied by other concerning symptoms such as: Seek urgent medical care for: Signs of allergic reaction including tongue or throat swelling, difficulty breathing, or widespread rash Sudden, severe abdominal pain with vomiting For patients with diabetes: fruity breath odor, confusion, excessive thirst, or rapid breathing (possible ketoacidosis) Your doctor may need to evaluate for alternative causes of dysgeusia, including medication interactions, nutritional deficiencies (particularly zinc or vitamin B12), oral infections, or dental problems
So the question isn't always whether B12 treatment caused an iron issue - it may be whether one was already there, just less obvious
And I think this is not often spoken about