I try to eat 6 small meals a day.
The aim for cycling is basically the same as a bodybuilding diet: to make sure your body always has the nutrients it needs to recover and improve from the training you do.
High calorie, high carbohydrate and high protein.
Try and eat 2g of protein per lb of bodyweight each day as it will help you recover properly. Whey protein, eggs and fish are all good sources of protein that are easily digested.
The carbs should be complex carbohydrate as much as possible maltodextrin, whole grains, pasta etc. Too many simple carbs and processed foods (sugar, white bread, fig rolls etc) will make you fat no matter how many miles you do.
Skipping meals during the day is easy to do but a bad idea as it'll mess up your body's natural rhythms and if you're hungry you're far more likely to end up eating junk food.
That's where the protein shakes and meal replacement drinks/ bars come in useful. You can take them to work and have them as snacks during the day giving you quality nutrition. They're useful too because they force you to drink plenty of fluid during the day.
There are lots of cowboy companies out there who sell rubbish though so be careful which ones you choose.
Supplements: Again there's loads of rubbish out there. A good diet is the main thing.
Some supplements are quite good however. You just have to try them to find which work for you really.
An iron supplement (taken seperately from your multivitamin) is a very good idea as it's easy to end up anaemic if you're doing a lot of miles on the bike.
Hope that helps.
