If you were to eat an unlimited amount of red meat (which the paleo diet technically allows), you may see your heart health suffer. While experts applaud the omission of packaged and processed foods like cake, cookies, chips, and candy — which are well known to be bad for your ticker — they’re not crazy about the fact that paleo doesn’t allow you to eat whole grains, legumes, and most dairy. Whole grains in particular have been linked with better cholesterol levels, as well as a reduced risk of stroke, obesity, and type 2 diabetes. (13) These are all comorbidities of heart disease. (14)
Certain food groups (like sugar, grains, dairy and legumes) could be having a negative impact on your health and fitness without you even realizing it. Are your energy levels inconsistent or non-existent? Do you have aches and pains that can’t be explained by over-use or injury? Are you having a hard time losing weight no matter how hard you try? Do you have some sort of condition, like skin issues, digestive ailments, seasonal allergies, or chronic pain, that medication hasn’t helped? These symptoms are often directly related to the foods you eat—even the “healthy” stuff. So how do you know if (and how) these foods are affecting you?
Food and Western Disease: Health and nutrition from an evolutionary perspective by Staffan Lindeberg (MD at Lund University in Sweden) is the newest book promoting the paleo diet. It covers the link between diet and disease in the Western world (all major diseases, including cancer, heart disease, obesity, stroke and dementia) and towards a greater knowledge of what can be defined as the optimal human diet. Benefits and risks are detailed. The Amazon reviews are all 5 stars. Especially read Susan Schenck's detailed review. You can read a preview at Google Books
Vitamin D is the one supplement that would be paleo. At least it would be for those of us that don't live outside year round. You can have your D level measured. The low RDAs only prevent definable deficiences, not problems that take a long time to develop. Michael Holick, MD is a leading writer on this subject. This is a 10 page PDF: Vitamin D: importance in the prevention of cancers, type 1 diabetes, heart disease, and osteoporosis and its companion Sunlight and vitamin D for bone health and prevention of autoimmune diseases, cancers, and cardiovascular disease [change PDF to 100% to read]. Or if you prefer, there is an hour video on YouTube.
Update: So I just finished Day 23 of my Whole30 Journey and I feel good, aside from the fact that I caught a cold. Weighing myself today, I discovered that I lost 19.5 pounds so far! I measured myself and immediately noted that I lost 19 inches over all (I measure my chest, both arms, both legs, waist, and hips). I think when I am done with my first round, I'll take a day off then start a second round. I just feel that great overall.
Following the paleo diet can be pricey. Inexpensive and healthy non-meat protein sources like soy and beans are off-limits, and a recent BMJ Open study shows that healthy meats like lean ground beef and boneless, skinless chicken breasts cost an average of 29 cents more per serving compared to less-healthy ones, such as high-fat ground beef and chicken drumsticks. Even switching from peanut butter to paleo-approved almond butter will cost you—it goes for up to $13 a jar.
I was very excited to get this book but am putting this in the "just ok" category. That said, I'm normally a huge Whole 30 fan and use the recipes from the Whole30: 30 Day Guide... all the time. Something that I appreciated from the 30 Day Guide was the simplicity of the recipes, most were kid friendly and included lots of one pot meals that work for busy people. That is not the case with the new recipe book.
CrossFit is promoted as both a physical exercise philosophy and a competitive fitness sport, incorporating elements from high-intensity interval training, Olympic weightlifting, plyometrics, powerlifting, gymnastics, girevoy sport, calisthenics, strongman, and other exercises. It is practiced by members of over 13,000 affiliated gyms, roughly half of which are located in the United States, and by individuals who complete daily workouts (otherwise known as "WODs" or "workouts of the day"). CrossFit has been criticized for allegedly causing people to suffer from unnecessary injuries and exertional rhabdomyolysis.