I've probably spent over $600 for vitamins/supplements in the last 2 years. I have about 30 different kinds. I'd say that from all these, only 3-4 were a waste of money.
I was coming out of 10 years of undiagnosed celiac disease. By 2011, I was feeling in my gut that the end was very near. I didn't know what was wrong you see, the best doctors couldn't figure it out. I was frail, and so afraid to even catch a cold, because it could be the end of me. In September 2011, after having read lots of online reports about "magical" health results of the Paleo diet, I gave it a try. Lo and behold, my main problems went away within a week! Within 3 months, 90% of my rest of my problems went away (I had a huge list of various autoimmune & inflammation issues).
But I had to supplement. The right food (and the removal of bad food), didn't do the trick alone. Apparently, my gut was so damaged, that I couldn't absorb vitamins anymore (and it still can't do so completely, but it's not as bad anymore). I was eating oysters and liver by the pound, and I was still diagnosed with... B12 deficiency! This is unheard of.
So for my case, I could justify these supplements, and in fact, I found them very beneficial. I was getting about 10 different ones every day. These days, I don't take more than 2-3. My body doesn't need supplementation as much, because it has mostly healed, and I provide it very high-density food (no grains, no vegetable seed oils, no processed foods, no added sugars, no unfermented legumes, no unfermented dairy -- everything else is ok).
I'd personally claim that most people eating the Standard American/Western Diet have a degree of inflammation or health problems coming to Paleo, and that for the first 2-3 months, they might need to supplement with vitamins/minerals (depending on each person's individual deficiencies, e.g. B12, if you had IBS/IBD). But after that initial healing period, I'd advocate the use of these few supplements only (Disclaimer: I'm not a doctor):
The must-have:
- Magnesium (our water/soil is depleted of it, almost everybody is deficient of it, even people on Paleo). Taken 30 mins before bed, daily.
- CoQ10 Ubiquinol (not Ubiquinone) (our mitochondria are very damaged in the western world, and we don't eat enough offal to make up for it). 100 mg, 3-4 times a week, during lunch.
The conditional ones:
- Vitamin D3 (ONLY if you're not spending at least 30 minutes outdoors daily, with little clothing). Supplementing with 3000 IU for 3 months in the beginning, might be important. Taken in the morning.
- K2 Mk4 (or Mk7) (ONLY if you're not brewing your own, lactose-free, goat-milk kefir). There is no food with K2 Mk4 in the Western world, because we don't eat insects anymore (we should). Fish roe might have a bit in it though. Twice a week.
- B1 (ONLY if you're not eating fermented legumes or nutritional yeast). Once a week.
- Folate (not folic acid). (ONLY if you're trying to get pregnant). Daily, 6 months before conception.
As long as people eat WILD fish DAILY, and they
don't cook with vegetable seed oils (coconut/olive oil are ok), they don't need to supplement with fish or krill oil to get their Ω3 & DHA. I personally serve wild fish and pastured meat on both lunch and dinner (and 1-2 pastured eggs for breakfast). It doesn't have to be huge quantities of fish & meat (just 80 gr each), so the price can stay low. We don't need much anyway. The bulk of the plate should be veggies (some raw). That misconception that people have online that Paleo is all about meat, is wrong. Fruits and nuts (except peanuts) are ok too, as deserts or snacking!
This regime has saved my life. The right diet got me 75% "there", but for the rest 25% I needed the help of supplementation in the beginning. Also, before I buy anything, I do my research first on PubMed, e.g.:
http://www.ncbi.nlm.nih.gov/pubmed?term=kefir Be informed and don't buy useless things, just because some tradition says so, buy a supplement because you found research papers that say that they could help you with the problems you're having.
As a last example, last year, I was diagnosed with large tumor (a nasty fibroid, located in a place that only 1 in 10,000 cases had it there -- couldn't find a surgeon to take care of this for me, they all were afraid of the location). So I searched on PubMed about which supplements could help me, along the Paleo-ketogenic diet (up to 50 gr of "net" carbs per day) which has shown to suppress SOME types of tumors. I found that green tea extract, grape seed extract, and turmeric extract had all shown promise in reducing fibroids in mice. So I bought these. 6 months later, I visited my oncologist again. He seemed very surprised that my tumor had NOT grown! It didn't shrink, but it didn't grow either. Eventually, a Stanford professor surgeon agreed to operate on me (after lots of begging), and all is well now.