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They found that both sperm concentration and motility were increased gradually throughout the treatment period, without any significant change in serum hormone levels

B-2 is required for red blood cell formation, antibody production, cellular respiration, and growth

It supports the nervous system by aiding in the formation of myelin, which protects nerve fibres, and it plays a key role in energy production through its involvement in the breakdown of nutrients into usable energy

The consequences of vitamin B12 deficiency extend far beyond simple fatigue, potentially leading to irreversible neurological damage and serious health complications when left untreated