The premise behind this diet is that you can eat whatever you normally would if you weren't dieting one day, as long as you eat nothing but One Day Diet wafers the next. You'll repeat the wafers every other day until you reach your goal. Affinity, the Multi-Level-Marketing company that makes the One Day Diet, tells us that it's easier to stick to their diet as long as we know our favorite foods are just one day away.
We're not convinced this is the best way to lose weight. What you are actually doing is starving yourself 50% of the time. Plus you are probably not making the healthiest choices on your food days, especially since the diet plan insists that you eat your normal non-diet food. We could not find a reference to eating healthier foods in their advertising. We also did not see a recommendation to exercise. Their advertisements were filled with numerous red flags.
On your diet days, you will consume 2 wafers every hour, for 10 hours. The 20 wafers contain a total of just 180 calories and weigh 2 ounces (total). You are encouraged to drink a lot of water. If you absolutely MUST eat something, you are only allowed some fresh fruit.
The wafers contain a tiny amount of calcium and protein, and a few selected vitamins and minerals, though not as much as you would get with an inexpensive multi-vitamin tablet. The product also contains a variety of supplements that are frequently sold for weight loss, though generally recognized as ineffective and offer potential side effects.
All you are really paying for is the opportunity to fast every other day. If you must do that, we suggest you not waste your money on this product, which currently costs about $40 for a 2 week supply and covers 7 diet days. It's just plain silly.