I take two daily multivitamins, as instructed by my surgeon. I take additional B complex, vitamin C, vitamin d, iron, two probiotics, 500 mg of calcium 3 times a day. the multivitamins, from Trader Joe's, are specially formulated for women and high potency. They're also chewable, as is the vitamin C tab I take every day.
I use pb-8 probiotics which I buy at Amazon. When I can afford it, I also buy fish oil. I had to test the gel capsule's ability to break down before it passed out of my system. I am happy to report that it works just fine.
All my other vitamins I take with water and I have already tested their dissolvability.
The hardest one to find is calcium citrate, in the right dose. Your body cannot absorb more than 500 mg of calcium in each dose. And women need 1500 mg of calcium daily.
Additionally, I prefer calcium citrate to calcium carbonate because it absorbs more fully without any possible side effects. It is almost impossible to get calcium citrate. I walked the supplements aisle at a drug store the other day and went through every brand, and only one was calcium citrate. And it was 640 mg per dose, which I can't understand how they arrived at, but I simply will not settle for less then a perfect dose. At my age especially, I have to make sure my bone density is strong.
And as I mentioned before, I read my metabolic panels like the Bible and check to see that I am within range for every required vitamin or mineral.
But what works for me might not work for someone else. There is no cookie-cutter metabolism. One thing people have reported frequently in this group is chronic iron deficiency that is genetically inherited. There are people here who have written about having to go into the hospital for iron infusions. So I would never suggest to them that they take the exact supplements I do. You have to find out how your body is handling your nutrients and adjust levels accordingly.
I feel strongly that this is something people should discuss with their bariatric teams. Malnutrition kills and bariatric surgery promotes malabsorption, which can lead to malnutrition very easily. Nutrients and water intake are probably the two most important elements of the post-operative life to keep in perfect condition.