Effect of 6-month calorie restriction on biomarkers of longevity, metabolic adaptation, and oxidative stress in overweight individuals: a randomized controlled trial
Although, other symptoms are non specific and often not recognized as being related to Low-T and often missed or treated under a different diagnosis
Mushrooms and Health Summit Proceedings, The Journal of Nutrition, Volume 144, Issue 7, July 2014, Pages 1128S1136S, Institute of Health, Office of Dietary Supplements Selenium Fact Sheet for Health Professionals, accessed April 11, 2019 Feng,Lei, Cheah,Irwin Kee-Mun, Ng, Maise Mei-Xi et.al
A qualified healthcare professional can properly diagnose a deficiency, rule out other causes of fatigue, and recommend the most appropriate form and dosage of B12, or indeed, direct you towards different treatments entirely