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England BR et al (2025)

Certain groups are more prone to B12 deficiency, including older adults, individuals with gastrointestinal conditions (such as Crohns disease or celiac disease), those who have undergone gastric surgery, or people with dietary restrictions

Chen and D

Scientists at University Hospitals Coventry and Warwickshire and Warwick Medical School found improvements in testosterone levels, sperm count, and sperm size and shape

The study protocol was approved by the Ethical Committee for the Use and Care of Laboratory Animals established by Alexandria University (Alexandria, Egypt)

Thats because GLP-1 receptors arent just in the guttheyre also in the brain areas linked to reward and cravings