Bracken ferns while toxicity symptoms vary widely based on dose, duration, and species of affected animals contain thiaminases, and thiamine deficiency has been noted in sheep grazing on the plants in Australia
Signs your timing needs adjustment If morning fasted administration is producing inconsistent results, consider whether compliance is actually consistent
Your GP may arrange further blood tests, imaging studies, or referral to specialist services depending on clinical suspicion and initial investigation results
Langan RC, Goodbred AJ
These are naturally occurring nutrients
READ MORE: Folate deficiency symptoms, how it works with vitamin B12, food sources How fast you recover from your symptoms, such as extreme tiredness or lack of energy, depends on how severe your deficiency has been