On 20-06-17 18:00, wrote:
I have rather a serious problem. When I ride I usually eat and drink nothing more than a pastry and a cup of coffee. The results of this are that I get extremely tired on long rides.

After reading physiological training books I'm informed that you should consume liquids with electrolytes in them - mainly slightly sweetened water with potassium and sodium in them. That is a type of cooking salt I believe.


Just to be clear, although sodium is a part of common salt (sodium
chloride), potassium is different and not found in cooking salt. Both
are absolutely required as salts, typically sodium chloride and
potassium chloride, for every kind of cell in your body to function
properly (sodium is mostly outside cells and potassium inside). You lose
both sodium and potassium when you sweat.

I don't usually ride more than 4 to max. 6 hours at a time, and stop for
lunch after a couple of hours. I assume that the lunch is what allows me
to go without taking any supplements.

Could part or all of your problem be low blood sugar (hypoglycemia) if
you exercise too much and don't eat enough?

Ned