Systemic allergic symptoms require more urgent attention and include: Cutaneous manifestations : widespread urticaria (raised, itchy welts), generalised pruritus, flushing, or angioedema affecting the face, lips, tongue, or throat Respiratory symptoms : shortness of breath, wheezing, throat tightness, or stridor (high-pitched breathing sound) Gastrointestinal symptoms : nausea, vomiting, abdominal cramping, or diarrhoea (though these can also be common non-allergic side effects of GLP-1 agonists) Cardiovascular symptoms : dizziness, light-headedness, rapid or weak pulse, or feeling faint Anaphylaxis represents the most severe form of allergic reaction and is characterised by the rapid onset of symptoms affecting multiple organ systems
As GLP-1 medications have taken center stage in the weight loss conversation, a new wave of supplements is now marketing themselves as GLP-1 activators, GLP-1 boosters, or GLP-1 support implying similar effects to prescription drugs
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Extracellular-matrix synthesis
Depleted mucosal antioxidant defences in inflammatory bowel disease
Systemic GHK-Cu administration can produce a metallic taste, particularly with sublingual formulations