Isn't it nice to know you're not alone! Welcome to the wonderful world of "I can't eat that"!! In addition to nut allergy I also have a dairy allergy and I'm gluten-intolerant so that means no wheat, rye, oats, or barley and I have to be careful with starches in general so easy on the legumes, potatoes, rice blah blah blah! Anyway, you can get sunflower seed butter and I found some rice flour tortillas (oh yeah, no yeast Period in my diet) and I'll make up fruit-sweetend jam and sunflower seed butter tortillas to carry, rice cakes with hummus or seed butter. Alecar (think Emergen-C) makes an electrolyte replacement drink that is everything free but the electrolytes your body needs, so I carry those with me on all my rides. I just carry all my own food - I can't always be sure whats in anything I buy or is provided and my allergies usually translate into asthma attacks (bad news on a bike 50 miles from home )