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.
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)
Excluding foods. The exclusion of entire categories of commonly eaten foods like whole grains and dairy requires frequent label reading in the supermarket and in restaurants. It may also increase the risk of deficiencies such as calcium, vitamin D, and B vitamins, if these nutrients are not consistently eaten from the allowed foods or a vitamin supplement. For example, there are some nondairy calcium-rich foods that are absorbed well by the body such as collard and turnip greens or canned bone-in sardines and salmon, but you would have to eat five or more servings of these greens and fish bones daily to meet recommended calcium needs. (Note that some greens like spinach that are touted to be calcium-rich also contain oxalates and phytates that bind to calcium so very little is actually absorbed.) One small, short-term intervention study of healthy participants showed a 53% decrease from baseline in calcium intake after following a Paleo diet for three weeks.  Furthermore, the exclusion of whole grains can result in reduced consumption of beneficial nutrients such as fiber and thus may increase one’s risk for diabetes and heart disease.
Plus, I feel like the way I eat directly affects my mood. If I eat sugar, I almost always feel like garbage. If I eat protein and veggies and tons of avocado, I feel stable and much less like I am going to have a stage-four meltdown. Blood sugar swings are also real — no one wants to deal with me when I am hangry. It’s a nightmare. This program is supposed to help with all these things. I desperately wanted to feel better, so I dove in.
While founders Dallas Hartwig and Melissa Hartwig are adamant in their book and on their website that “you’ve done harder things than this, and you have no excuse not to complete the program as written,” the Whole30 is not for the lazy or noncommittal. Without careful planning, a strong support system and dogged dedication, a business lunch, flight delay or date night can throw you off and send you back to the start. By nature, diets that eliminate entire food groups are tough to follow. On the other hand, it’s only 30 days.
A diet high in phytic acid, which can be found in whole grains (it's in the bran) and beans like soy, is very detrimental for mineral absorption. Phytic acid strongly binds to minerals like calcium, iron, zinc and magnesium to form insoluble salts, phytates, which precipitate from the body and are not absorbed. Staffan Lindeberg has written a summary on phytic acid.
Anti-inflammatory meal plan: 26 recipes to try For people with chronic inflammatory conditions, diet can have a powerful effect. Certain foods can help to reduce joint pain, stiffness, and other symptoms. These include omega-3s, antioxidants, and probiotics. In this article, we provide 26 anti-inflammatory recipes you can use in a healthful, nutritious meal plan. Read now
For totally dippable and kid-friendly chicken, give this Whole30 recipe a try. Chicken gets breaded in an easy mix of unsweetened coconut flakes, coconut flour, and almond meal, then bakes for a totally crunchy main dish. To stay more Bulletproof, use pastured chicken, swap almond milk for full-fat canned coconut milk, and trade the pepper for your favorite fresh herbs.
The Great Cholesterol Con by Anthony Colpo. The definitive book on the non-dangers of dietary cholesterol and saturated fat was The Cholesterol Myths by Uffe Ravnskov, 2000. This book is six years newer. Its forward is by Uffe Ravnskov. To get a wonderful description of the book read the leading review at Amazon. The many reviews there average to 5 stars.
At CrossFit, some coaches refer to this as “Uncle Rahbdo,” though it’s not something funny or enjoyable. You can read all about the condition and issues it can cause here. This typically occurs with (primarily male) ex-athletes who have not exercised for a while and come back trying to prove something, and end up working at a higher intensity than their body can handle.