I love, love, love The Daily Plate. I probably won’t use it as often as I should, but I love the idea behind it, and I love that it exists.
A few months ago I’d tried to make my own calorie-counter widget for Konfabulator (now Yahoo! Widget Engine), but I never got very far. The most time-consuming part was trying to make life easier in the long run by finding a way to record my intake by food, rather looking up the nutritional data and then inputting the numbers every time (or, worse, digging the packaging out of the trash to get the nutrition info from the side of the box). This would have been fine for a limited number of foods, but if I wanted to keep track of every single thing I ate, I’d rather have easy access to a database that automatically retrieved such info for me.
The Daily Plate has a neat, web2.0, near-solution to the problem I was trying to solve. Once you sign up, you enter your height, weight, and everyday activity level, so they can give you your “recommended” daily calorie intake. In my case, this is around 1500 Calories a day. Then you are shown your “daily plate,” on which you can start to record the number of calories you’ve consumed each day.
The way to do this is to search for the food you just ate, and then click on whatever match you get. You’re then shown the product page, which you can see below. There’s a button to the left of the Nutrition Facts sidebar (which looks just like it does on food packaging!): after you click it, you can specify whether you ate this product today, yesterday, or some other day, and voila! It’s recorded. Pretty easy! On this page you can also leave a review of the food…I find this feature slightly less useful; if you’re hungry or grocery shopping, it would never occur to you to check some stranger’s review of a product, would it? But I could be wrong.

Anyway, another nifty feature is the box underneath that “I ate this!” button. It lists foods that might be healthier for you to consume (bring on the guilt trips!), or alternatives in case you’ve been eating the same boring quesadillas every day and wanna try something different, or with less protein or sodium or fat or whatever.
Ah, but what happens if you want to add Trader Joe’s Vanilla Yogurt but get no hits? Well, you can either go with the “generic yogurt” (with inaccurate calorie info), OR you can add the food yourself, which turns out to be more fun than I would have expected it to be, thanks to their extremely user-friendly input forms. You give them the brand and product name, then enter the nutrition information just as it appears on the product’s packaging (which, hopefully, you’ve saved). So yeah, there’s still a bit of work on the user’s side, but the power of web 2.0 means that the bulk of the work will have already been done for you (unless you’re a weirdo like Angie and only drink Peet’s coffee). Long live user-generated content!
The only downside to adding a product to the database yourself is that it’s not considered official until after the site’s mods have reviewed it. Understandable, but not exactly 2.0. Most other websites (like Craigslist and Flickr, or Yelp) rely on the users, again, to flag questionable or inaccurate contributions. So I’m not sure why they made that decision.
Another thing that gives me pause is how many of the search results return fast food products. Even something as basic as “orange juice” gives me tons of hits from Carl’s Jr. and McDo, and I have to go to page 2 to find like, Tropicana. My guess is that the site’s runners found it easy to find and add this data from fast food places, who are sort of obligated to make such info readily available (on their own restaurant web pages, for example). I don’t think there’s anything sinister going on in terms of ads or anything, at any rate. For now, ads on the site are rare and bare, which is pretty nice.

So The Daily Plate is basically a diet-tracking website, in the sense that it tracks what you eat, and not in the sense that it’s a ‘weight-loss regime,’ which it isn’t, ultimately, although there is the option to calculate how many calories you’d need to consume each day in order to gain or lose a pound or two a week, or to maintain your weight. You can also track the amount of exercise you get, because it lets you “subtract” calories you’ve burned by doing physical activities (which you can pick out of their list, or else you can just input the calories-burned info yourself).
Beyond the user-generated stuff, the site also has forums set up for users to share information, discuss diet tips, talk about the progress their making, and other general health- and diet- related issues. This stuff will be nice for community-building, and I plan to check it out once the site gains more users and the boards become more active.
All in all, a nicely done website (maybe a few UI, user-friendliness issues here and there, but if you can figure out MySpace, this place is a cinch). I guess I can put my calorie counter project on permanent hiatus =)