Do you have a link for the challenge (or just more details)? I'm trying paleo for the month of June and Whole30 seems too strict for me right now.

Sure, the document I have is like 3-4 pages long, but I'll lay out the specific rules for you that it included:

Allowed: All meats, all non-starchy veggies, all fruits, sweet potatoes, squashes, nuts (except peanuts, they are legumes), seeds, eggs, ghee or clarified butter, 1/2 Tbsp of natural sweeteners per day including agave, honey, coconut sweeteners, Stevia (1 packet/day), dried fruits with no added sugar. Red wine (6 oz per day, cannot be rolled over to future days), Tequila (2oz/day, cannot be rolled over). **Protein powders and bars in moderation.

** I disagree with this and won't most likely be including it, but I didn't make the "rules".

Not Allowed: Refined sweeteners or artificial sugars (including gum, candy, mints, etc), dairy foods including butter (ghee is ok), cereal grains or rice including, grain-like seeds including quinoa, buckwheat, amaranth, legumes (chickpeas, peanuts, soy beans), white potatoes or anything they are made from, soft drinks and fruit juices.

Feel free to follow at whatever level of commitment you'd like. The actual challenge (at my gym) requires that I turn in my daily food journal to the moderator each day, points will be given for following these guidelines and deducted for "cheats".