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Serious Indicators of Vitamin B-12 Deficiency Severe vitamin B12 deficiency can cause signs and symptoms such as Yellow skin Weak muscles Numb or tingly hands or feet Trouble walking Severe joint pain Increasing shortness of breath Weight loss Irritability Lack of smell and taste sensations Memory loss Paranoia Delusions Deep depression What Does B12 Fatigue Feel Like

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Hydrogels: Hydrogels have excellent biocompatibility and drug loading capacity, and can be used to achieve sustained and controlled release of drugs

Proc R Soc B Biol Sci

It is not sold for human consumption, clinical treatment, diagnostic use, or self-directed peptide therapy