Doctors don't lie???
We'll leave that alone, but let's look at some of the doctors at your link.
Dr. Stephen Patt-- a family practitioner with a 45% patient satisfaction rating.
www.healthgrades.com/physician/dr-stephen-
patt-2tlg2/patient-ratings Not an expert in nutrition, and apparently not a particularly good GP.
Dr. Matthew Jensen-- emergency room physician. Doesn't actually say he thinks Shakeology is a good product, just that losing weight is good for you.
Dr. Mark Cheng-- accupuncturist, not MD. Google him and you get a list of things he sells longer than your arm.
Dr. Marvin Slepian-- cardiologist. Again, says that losing weight is a good thing, does not say that Shakeology is a good product.
It goes on and on. Some of the "doctors" are chiropractors, who in most states are legally barred from giving nutritional directions. Most of the actual doctors say things along the lines of "Shakeology is better than a fast-food lunch" or "Hey, if it helps with weight loss, that can't be bad," or "It's only 140 calories and it has a lot of vitamins, so it's not a bad thing to have as a snack." NONE of them say it's the best way to lose weight (in fact, most of them don't even say it's a good way to lose weight.)
Meal replacements work for some people-- especially for people who have just gained a few pounds recently, due to a particular change in lifestyle or an illness, etc. If you gained weight from a temporary problem, and you just need to get back to normal, then a temporary solution is fine. If, on the other hand, you've had a weight problem for a long time and your "normal" is what you're trying to change, then you need to avoid temporary things and look for a new, permanent, healthier "normal."
And the real, major drawback to Shakeology is that it's a multi-level marketing system. That means the company doesn't really make its money from making and selling the shake; it makes its money from charging people to sell it for them! If you want a meal replacement shake, get one that you can buy in a store. That way, if you don't like it, it doesn't work, or it works and you don't need it anymore, you can just quit buying it. With Shakeology, the second you stop buying it, you're going to get a phone call from your "distributor" begging you to come back and crying that she "thought you were friends" and you "owe her a little loyalty," and who needs that? If you want a diet shake, get one that doesn't come with a relationship!