The primary con to this diet is that it can be extremely limited and difficult for some people to follow. The average fat intake is only 6% of your total calories, which is considerably lower than the recommended 20% to 35%. This limitation is because meat is omitted from the plan. Cutting out an entire food group may be too much of a restriction to maintain over the long-term, so some people do best by modifying this diet to allow for a moderate amount of meat. The high fiber intake may also pose a problem initially. It's best to slowly increase the amount of fiber you consume so your body can get used to it. The goal is always long-term weight loss and maintenance. This diet does have the research to support it, but it may need modifications to make it work for you.
“Research continues to support the role of a high-protein diet and weight loss, however, we don’t want to reach those protein needs exclusively with animal proteins. Plant proteins found in beans not only help us feel full and stabilize blood sugar but beans are associated with longevity. Who cares about being skinny if you die young?” —Jennifer McDaniel, MS, RDN, CSSD, LD, food and nutrition expert
What may come as some consolation is that even the fittest among us know the struggle is real: “Many know me from social media as the jump rope queen and fitness trainer who is always smiling while coming up with difficult and creative workouts. What they may not know is that like everyone else, I too struggle with finding ways to keep my motivation up when it comes to diet and exercise,” says Janine Delaney, psychologist and fitness expert whose social media platform has amassed almost 2 million followers. “As a full-time psychologist, wellness influencer and mom of two teenage girls I have an awful lot going on. Sometimes it would be easier to head for the couch with a bag of chips than plan a healthy meal and fit in a workout. Still, I make it happen.”
We know that shedding unwanted pounds used to mean giving up your favorite foods, logging hours at the gym, and being hungry (and hangry) all the time. Fortunately, dropping a dress size (or two) doesn’t have to be that complicated or torturous. Sure, losing any significant amount of weight requires lifestyle changes and some hard work, but it all boils down to simple choices.
Shaping is a behavioral technique in which you select a series of short-term goals that get closer and closer to the ultimate goal (e.g., an initial reduction of fat intake from 40 percent of calories to 35 percent of calories, and later to 30 percent). It is based on the concept that "nothing succeeds like success." Shaping uses two important behavioral principles: (1) consecutive goals that move you ahead in small steps are the best way to reach a distant point; and (2) consecutive rewards keep the overall effort invigorated.