An important emphasis of the South Beach Diet is controlling hunger by eating before it strikes. To that end, the South Beach Diet includes three different phases. (3) Phase 1 is one week long and aims to “reset your body” to help burn fat and increase your metabolism, as well as reduce sugar and starch cravings. Phase 2 is for steady weight loss, where you add in good carbs to your diet. Phase 3 is the weight-maintenance phase, where you learn to maintain your new weight without deprivation or hunger, according to the South Beach Diet website.
One larger randomized controlled trial followed 70 post-menopausal Swedish women with obesity for two years, who were placed on either a Paleo diet or a Nordic Nutrition Recommendations (NNR) diet.  The Paleo diet provided 30% of total calories from protein, 40% fat (from mostly monounsaturated and polyunsaturated fats) and 30% carbohydrates. It included lean meats, fish, eggs, vegetables, fruits, berries, nuts, avocado, and olive oil. The NNR diet provided less protein and fat but more carbohydrate with 15% protein, 25-30% fat, and 55-60% carbohydrates, including foods similar to the Paleo diet but also low-fat dairy products and high-fiber grains. Both groups significantly decreased fat mass and weight circumference at 6 and 24 months, with the Paleo diet producing greater fat loss at 6 months but not at 24 months. Triglyceride levels decreased more significantly with the Paleo diet at 6 and 24 months than the NNR diet.
This is a list of paleo diet meats allowed on the diet. Almost all meats are paleo by definition. Of course, you’ll want to stay away from highly processed meats and meats that are very high in fat (stuff like spam, hot dogs, and other low-quality meats), but if it used to moo, oink, or make some other sound, it’s almost certainly paleo (and, yes, that means you can still have bacon). Here’s the full list of paleo diet meats.
Paleoista: Gain Energy, Get Lean, and Feel Fabulous With the Diet You Were Born to Eat by Nell Stephenson. Paleoista is not only a how-to book, it is also a glimpse into the life of a woman who gives advice on how to eat this way, and lives the life, day in and day out. The author's websites: NellStephenson.com Nutrition & Fitness and Paleoista.com. To be published May 1, 2012.
Meetup has a growing number of paleo groups, now numbering in the dozens. Each has a local message board. They have a map of Paleo Diet Meetups around the world. Initially I tried listing them all here. The number grew and Meetup wasn't letting me find groups in newest order, except for my zip code. You now have to go there to find the one nearest you.
A 2010 study in Diabetes, Obesity and Metabolism assigned 259 overweight diabetics to one of three diets: a low-carb Mediterranean diet, a traditional Mediterranean diet or a diet based on recommendations from the American Diabetes Association. All groups were told to exercise 30 to 45 minutes at least three times per week. After a year, all groups lost weight; the traditional group lost an average of about 16 pounds while the ADA group dropped 17 pounds and the low-carb group lost 22 pounds.
The South Beach Diet was created by a cardiologist in 2003, and it's considered to be a modified low-carbohydrate diet, according to U.S. News & World Report. It's based on the idea that carbs and fats can be either good or bad. If you decide to follow the South Beach Diet, you'll probably be getting fewer carbs and more protein and healthy fats than you're used to eating.
"Your body will often shift metabolism when you do something different to it -- but it equalizes -- you see a rapid shift and a return to normal -- and the longer-term studies show normal results in this area," says Sondike. Still, he tells WebMD it's a "smart idea" to take a calcium supplement beginning at the start of your low-carb diet to safeguard against a possible deficiency. Tofu can also be a good source of calcium.
"Loren Cordain's extensive research demonstrates how modern westernized diets drastically depart from the original diet humans consumed for millions of years. In The Paleo Diet and The Paleo Diet Cookbook, Dr. Cordain shows how diets high in grains, dairy, vegetable oils, salt, and refined sugars are at odds with our genetic legacy and then shares his uncomplicated strategy for losing weight and getting healthy."
The idea that counting calories is the key to weight loss has long been embedded in the government’s dietary guidelines. It is the driving force behind public health policies like mandatory calorie counts on restaurant menus and food labels. Many experts say that the underlying cause of the obesity epidemic is that Americans eat too many calories of all kinds, prompted by easy access to cheap and highly palatable foods, and that they need to exercise portion control. On its website, for example, the National Institutes of Health encourages people to count calories and warns that dietary fat has more calories per gram than protein or carbs: “You need to limit fats to avoid extra calories,” it states.
Once blood glucose levels have remained consistently low for a period of time (typically two to three days) the body adapts and the liver begins to produce ketones from free fatty acids. Ketones can be metabolized by many cells in the body including those cells that cannot directly metabolize fat. Once the body's production of ketones reaches a certain level the body is in nutritional ketosis. When the body is in nutritional ketosis fat becomes the primary energy source, and the body metabolizes stored fat and dietary fat.
According to Adrienne Rose Johnson, the idea that the primitive diet was superior to current dietary habits dates back to the 1890s with such writers as Dr. Emmet Densmore and Dr. John Harvey Kellogg. Densmore proclaimed that "bread is the staff of death," while Kellogg supported a diet of starchy and grain-based foods. The idea of a Paleolithic diet can be traced to a 1975 book by gastroenterologist Walter Voegtlin,:41 which in 1985 was further developed by Stanley Boyd Eaton and Melvin Konner, and popularized by Loren Cordain in his 2002 book The Paleo Diet. The terms caveman diet and stone-age diet are also used, as is Paleo Diet, trademarked by Cordain.
Knowing what to eat is part of it, but following this fairly restrictive lifestyle in a modern environment surrounded by cookies and candy and bagels and pasta is really difficult! Factor in the “carb flu” you might go through in the first few weeks (as your body gets weaned off of carbohydrate fuel and habits), and most people give up on the Paleo diet long before it creates lasting change!
We cannot time travel and join our Paleo ancestors by the campfire as they prepare to eat; likewise, shards of ancient pottery and fossilized teeth can tell us only so much. If we compare the diets of so-called modern hunter-gatherers, however, we see just how difficult it is to find meaningful commonalities and extract useful dietary guidelines from their disparate lives (see infographic). Which hunter–gatherer tribe are we supposed to mimic, exactly? How do we reconcile the Inuit diet—mostly the flesh of sea mammals—with the more varied plant and land animal diet of the Hadza or !Kung? Chucking the many different hunter–gather diets into a blender to come up with some kind of quintessential smoothie is a little ridiculous. "Too often modern health problems are portrayed as the result of eating 'bad' foods that are departures from the natural human diet…This is a fundamentally flawed approach to assessing human nutritional needs," Leonard wrote. "Our species was not designed to subsist on a single, optimal diet. What is remarkable about human beings is the extraordinary variety of what we eat. We have been able to thrive in almost every ecosystem on the Earth, consuming diets ranging from almost all animal foods among populations of the Arctic to primarily tubers and cereal grains among populations in the high Andes.”
In addition to keeping you adequately hydrated -- which can also help alleviate constipation -- drinking lots of water can also help offset still another low-carb diet problem: bad breath. The ketones produced during the diet can lead to what is sometimes described as a fruity odor although it is often described as having an almost "chemical" odor similar to acetone or nail polish remover.
Many sources place the South Beach Diet on lists of "low carb" diets such as the Atkins Diet. While the South Beach diet does prohibit foods rich in simple carbohydrates such as white bread, white potatoes and white rice, it does not require dieters to forgo carbohydrates entirely or even measure their intake. Instead, it focuses on the "glycemic impact" (short term change in blood glucose) of foods. (Nutritionists continue, however, to question the net benefit of the first phase to dieters not affected by impaired glucose metabolism.) Many vegetables are permitted even in phase 1. Complex, fiber-rich carbohydrate sources such as brown rice and 100% whole grain bread are permitted during phase 2. Agatston has tried to distance the South Beach Diet from "low carb" approaches; in the South Beach Diet book he wrote: "It is my purpose to teach neither low-fat nor low-carb. I want you to learn to choose the right fats and the right carbs.":22–23