Calf cramp and resultant pains

Whilst out on a training ride on Wednesday evening I suffered severe cramp in my left calf 12 miles into an 18 mile loop. I stopped and stretched and continued on but honestly, struggled to get home. Now I'm left with bad pains in my left calf which is stopping me from doing anything this weekend. I have some questions:
What causes the cramps as I drank High5 Zero during the ride but maybe not enough before?
What can I use or do, to help recover from this painful calf muscle? I've tried stretching but it feels like it might go ping!
Does what you eat drink during the working day effect your body as I'm beggining to think I eat too much rubbish during the day.
Thanks
Ramsey
What causes the cramps as I drank High5 Zero during the ride but maybe not enough before?
What can I use or do, to help recover from this painful calf muscle? I've tried stretching but it feels like it might go ping!
Does what you eat drink during the working day effect your body as I'm beggining to think I eat too much rubbish during the day.
Thanks
Ramsey

Specialized Rockhopper Expert Disc 2009
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It also helps to load up ona good amount of water about an hour before the ride at the latest, that way you have enough fluids in you when you do start sweating.
Lots of riders recommend isotonic drinks, but tbh I've never found them much good - went off them years ago and never gone back. Most taste like vomit to me, and have been known to result in the same.
I know what you mean. When I do cramp, which is luckily not that often anymore, i'm basically immobilised for about 2-3 days afterwards.
Unfortunately the left leg just went and once it's gone it hurts like hell.
Annoying as I'm riding today and tomorrow. Just hope it will go away, or will riding cause damage?
It's eased off at the moment but there's tenderness on the calf muscle.
After a good summer of riding, when winter arrived I started feeling cr*p and battling to maintain a decent pace on my bike. Lots of aches & pains, and the crunch came on the Evans ride at Cliddesden in Nov when out of the blue I got massive cramps in my quads and calves. At the time I put it down to the cold and mud.
Long story short, more cramps plus dizziness and a few other things eventually led me to visit the doctor, and blood tests showed that I had a serious vitamin D deficiency (mine was 24, 'normal' is 75 :shock: ) . . . and low calcium levels.
The vit D deficiency is put down to a lack of sunlight, which is why it's worse in winter, but it affects some people much more than others. Vit D and calcium deficiencies often go together because vit D is required (amongst many other things) for the absorption of calcium - and a lack of calcium has been linked to cramps!
I won't go into detail - there is plenty about it on the web - but if you are suffering cramps at night / feeling run down and achy in winter, it may be worth getting your vitamin and mineral levels tested.
I've been on a vit D3 supplement since the beginning of January. The doctor said it would be at least a month before I should expect to see any improvement, but in the last two weeks I've had less muscle aches and thankfully no cramps, so it's looking hopeful.
Carbon 456
456 lefty
Pompino
White Inbred
Delicious it is . . . but not that rich in Vit D (though it has lots of vit A) and unfortunately beef and chicken liver also contain loads of cholestrol. Salmon, mackerel, tuna and (if you can stomach it) cod liver oil are the best dietary sources, followed by milk.