l-carnitine can make you manic in the Treatment of Psychiatric and Neurological Manifestations: A Systematic Review Frontiers | L-Carnitine and Acetyl-L-Carnitine:

Description

For a 70 kg runner starting at 9 AM with a 6 AM breakfast: 2 slices of white toast with honey (60 g carbs) 1 banana (25 g carbs) 500 ml sports drink (30 g carbs) Total: roughly 115 g carbs (1.6 g/kg)

Vitamin B 12 deficiency that results from pernicious anemia can easily be corrected with high-dose daily supplementation or with monthly intramuscular injections of the vitamin (see the article on Vitamin B 12 )

J Transl Med 21 , 487 (2023)

Additionally, achieving glucose control in people with type 2 diabetes has been shown to decrease the occurrence of major microvascular and macrovascular events (113)