Most Americans drink coffee and thus take caffeine as a diuretic.
Diabetics have glucose diuresis and a clear problem with reabsorption of thiamine and other nutrients.
Many diabetics have high blood pressure and are prescribed a diuretic.
With all of this diuresis, a coffee-drinking diabetic with a prescription diuretic would automatically be told to take massive doses of thiamine, correct?
Not at all – not only are they not told to do so, as standard protocol, but thiamine activity is never even monitored.