However, other authorities, have not considered any B 12 increment in pregnancy with the view that the requirement for B 12 in adults should be also sufficient for pregnant women who are with adequate body stores at the start of pregnancy (69)

You should contact your GP if you experience any of the following: Periods that stop entirely for three months or more if your cycles were previously regular, or for six months or more if your cycles were previously irregular (secondary amenorrhoea) Unusually heavy or prolonged bleeding for example, bleeding that lasts more than seven days, passing clots larger than a 10p coin, flooding through protection every one to two hours, or needing to use double protection (in line with NHS and NICE NG88 guidance on heavy menstrual bleeding) [6] Severe pelvic pain associated with your cycle Spotting or bleeding between periods or after sexual intercourse Signs of nutritional deficiency , such as hair loss, fatigue, or brittle nails, which may suggest malabsorption (particularly relevant with orlistat use) It is also important to consider that missed periods are not always caused by weight loss or medication pregnancy should be excluded if there is any possibility of conception

1-6 It can also deplete vitamin C levels
Freezing is even worse because ice crystals physically damage the peptide structure, causing irreversible denaturation
Muscle and post-exercise L-carnitine has also been studied in the exercise context for its potential role in muscle recovery