Do not consume baked goods, junk foods, or treats with “approved” ingredients. Recreating or buying sweets, treats, and foods-with-no-brakes (even if the ingredients are technically compliant) is totally missing the point of the Whole30, and will compromise your life-changing results. These are the same foods that got you into health-trouble in the first place—and a pancake is still a pancake, even if it’s made with coconut flour.
I cannot possibly put enough emphasis on this simple fact—the next 30 days will change your life. It will change the way you think about food. It will change your tastes. It will change your habits and your cravings. It will restore a healthy emotional relationship with food, and with your body. It has the potential to change the way you eat for the rest of your life. I know this because I did it, and millions of people have done it since, and it changed my life (and their lives) in a dramatic and permanent fashion.
There is evidence that the quality, rather than the quantity, of carbohydrate in a diet is important for health, and that high-fiber slow-digesting carbohydrate-rich foods are healthful while highly-refined and sugary foods are less so. People choosing diet for health conditions should have their diet tailored to their individual requirements. For people with metabolic conditions, in general a diet with approximately 40-50% high-quality carbohydrate is compatible with what is scientifically established to be a healthy diet.
Before I went on Whole30 I was sleeping 8 to 10 hours a night (yes, I love my sleep), yet come 2 p.m. I'd hit an energy slump. I'd feel high right after I ate (looking back on it, probably because I was eating so much added sugar) but my energy would significantly fluctuate through the day. During the beginning of Whole30 — specifically the first three days — I really struggled. Again, I was a sugar addict and I think detoxing from that really affected my energy levels. But after that slump, my energy was constant — I really had never felt better. Even when things didn't go the way I wanted, I felt energetic and up for any challenge.
Due to CrossFit's official partnership with Reebok, competitors at the 2015 Games were banned from wearing Nike footwear. Nike arranged for several trucks to be parked near the main entrance to the arena, which served as mobile billboards with the slogan "Don't ban our shoe, beat our shoe". The partnership also prohibits Nike from labeling its Metcon shoes as intended for CrossFit – the brand uses the term "high intensity training" instead.
“I think there are a lot of positives about it,” Holley says. “It cuts out a lot of processed foods just naturally, like processed grains or added sugar through soft drinks or juice.” And because the diet promotes eating anti-inflammatory foods — like fruits, vegetables, and unsaturated fats in nuts and certain oils — your health could benefit, Holley explains. Cutting out processed foods and sugar will also help lower your risk of certain diseases, like type 2 diabetes and certain cancers, she says. (6)
Low-carb approaches stem primarily from the hypothesis that lowering insulin, a critical hormone that produces an anabolic, fat-storing state, improves cardiometabolic function and induces weight loss. This approach has been recently called the carbohydrate-insulin model. Studies have shown low-carb approaches to be superior to other dietary approaches in producing rapid weight loss for the first 6-12 months. While diets inducing weight-loss produces a caloric deficit, the mechanism of low-carb diets remains in debate. When lowering carbohydrates from the diet, the macronutrient intake of fat and protein generally increases to compensate for the reduction of carbohydrates. One hypothesis of why low-carb approaches produce rapid weight loss compared to other diets is that fats and protein increase satiety and produce less concomitant hypoglycemia. This increase in satiety and less rebound hypoglycemia then reduces hunger and overall food intake and produces a caloric deficit. Additionally, another hypothesis contends that low-carb diets can produce a higher metabolic burn than high-carb diets. In recent studies, there appears to be a metabolic advantage of approximately 200 to 300 more calories burned compared to an iso-caloric high-carb diet. However, these theories remain controversial.
Another 2014 study in the European Journal of Clinical Nutrition compared the effects of the Paleo plan to those of a standard low-fat diet on 70 obese, postmenopausal women. After six months, the Paleo group lost 14 pounds on average, while the other group lost nearly 6 pounds. After a year, the Paleo group had lost 19 pounds on average, and the low-fat dieters had dropped 10 pounds. A year later, both groups had regained some weight: The Paleo group was still down 10 pounds, while the low-fat group had dropped an average of more than 6 pounds.