I made the link clickable.
And I call "total BS." The general idea of the article is basically okay, although it says NOTHING new, but 4 out of the 5 specific steps are just plain wrong and possibly unhealthy.
1) YES, you need to cut fat-- but egg yolks aren't the place to do it. Egg yolks have important micronutrients that we rarely get elsewhere, including some that are important for myelination (keeping the fatty sheath around your nerves healthy.) Cut things like butter or cheese, stop eating ANY snack foods with fat, maybe even have smaller servings of things like nuts. Or eat one yolk and two whites instead of two whole eggs-- that works pretty well and makes tastier scrambled eggs and omelets IMO.
2) Low-fat salad dressings, yes. But not non-fat, because you need at least a tiny bit of fat alongside leafy greens to properly absorb some of the vitamins. Most people use far too much dressing on their salads, so you'll probably trim more calories by cutting back to a tiny drizzle of regular or reduced-fat dressing than you would by pouring on the fat-free, which is usually high in sugar.
3) No argument here. In those last few pounds, it's more important than ever to weigh and measure your food, because you're going to be hungry, and it's pretty well established that when you're hungry, your eyes deceive you into thinking portions are smaller than they look when you're not hungry.
4.) Sigh. It doesn't matter what time you eat. Old wives' tale.
5) Doctor Oz's minions shilling supplements. None of these things work; the only weight you'll lose with these is in your pocketbook. This was the "point" of the article because it brings in ad clicks, but it's just their way of selling rip-off products under Dr. Oz's name while still being able to say, "but Dr. Oz doesn't actually *endorse* the rip-offs! It wasn't OUR ad; we just get paid to let them show up on our site so you'll *think* Dr. Oz says they work."
As to your original question, if you use the formula of 10 calories per pound of goal weight, it probably won't hurt anything. You'd be eating around 1200 calories, which is the minimum most women need in order to get their basic nutrients. SparkPeople probably has you at 1200-1500, right? Eating at the lower end of that range is reasonable as long as it doesn't make you feel ill.
If you want my opinion as someone who has struggled with those last few pounds more than once, I would say that the 5 "rules" are:
1) Make sure you really do have fat left to lose. Get a serious, medical-grade body composition test, because you can't lose fat if you don't have any excess. Your body will only let fat get just so low before it starts burning muscle, nerve tissue, bone, and other organs for energy.
2) Cut whatever calories you don't need. That means refined sugar, first of all. I'm not usually in favor of being extreme about anything, but for me to lose those last pounds, I have to cut out the sugar almost completely. That's largely because it's the only source of unnecessary calories I have left. If you've already cut empty sugar calories, then it's time to look at reducing fat if you're over your lower limit, or protein if you're getting more of that than you really need.
3) There are no other "rules." Losing the last few pounds is HARD because your body doesn't think you need to do it at all. Just keep plugging away until you find what works for you.