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Although many patients respond well in the short term, long-term outcomes remain unsatisfactory

doi: 10.1126/science.1240094

The peer-reviewed IGF-1 LR3 research literature consists of in vitro characterization studies (receptor binding, IGFBP interaction, cell-culture potency) and a small body of rodent in vivo work primarily in cachexia and protein-metabolism models

This can be beneficial for various health conditions, including heart disease, kidney disease, and possibly in weight management

Common symptoms include: Fatigue and weakness One of the earliest and most common complaints Pale or yellowish skin Due to reduced red blood cell production Shortness of breath From anemia reducing oxygen-carrying capacity Numbness or tingling in hands and feet A sign of nerve damage Balance problems and difficulty walking Neurological manifestation of deficiency Memory problems or brain fog Cognitive effects of low B12 Mood changes, depression, or irritability Sore, red, or swollen tongue (glossitis) Mouth ulcers Constipation or diarrhea Neurological symptoms numbness, balance issues, cognitive changes can become permanent if deficiency is not treated promptly

25,26 In one placebo-controlled crossover trial that included 25 rosacea patients, 100 mg zinc sulfate (providing 23 mg of elemental zinc) three times daily for three months resulted in decreased rosacea severity