You don't need carbs for endurance riding which is generally at a lower intensity than an all out racing speed for which you do need a small amount of carbs, teach your body to burn fat. Have a look through this website to get an idea, there's also some good pointers regarding weight loss goals on his website along with Ben's website below.
For the past few weeks i've been researching what works and what seems to be quackery as i've now got the "bike" bug again and i've realised that whilst i perhaps can't ride with the intensity like i did 6 years ago due to spinal issues that's no excuse to wallow in the corner and throw my toys out the pram so i've been preparing myself to get back into it this year, slowly but surely - hopefully.
I've been reading through Ben Coomber's website and listening to his podcasts along with examining the evidence for use of supplements etc through various peer reviewed studies with regard to performance/recovery etc. I've decided to try the Genetic Engineered Supplements range as a friend of a friend is involved in the current testing procedures but as to whether or not they will make a difference i'll have to wait and see, perhaps i've just wasted cash on expensive commercial fairy dust but i'm willing to try them for myself.
I've just received the Sustain zero carb performance mix, Matrix recovery mix and Genetic Pre-load mix and have yet to try them in anger so to speak, i am a vegi (no fish/meat products) so i guess i do need to supplement my intake of certain proteins and minerals somewhat more than those that do eat fish/meat on a regular basis.
Caffeine is generally regarded as good thing pre ride as it enables your body to burn fat more rapidly, just as well as i do like my double espressos