I'm happy that you have asked me to assist you with your child and hope that you can benefit from my many years of helping parents like you.
Vitamin A toxicity is very rare, especially in children who have amazing abilities to metabolize medications and toxins.
The dosage of vitamins A,C and D found in both Tri-vi-sol and Poly-vi-sol are safe and did not harm your child. The FDA recommended daily allowance is the minimum and 1500 IU is what is posted and looking at the labels of these vitamins I'm confused as to how he got 2300 - 2500 IU when the dose only contains 1500 IU.
I assume you are adding up the vitamin plus what was in his diet to come to that number but again, toxicity is extremely rare and for many of my practice years I followed the American Academy of Pediatrics and FDA recommendation of giving vitamins to breastfed babies but not to formula fed babies with no ill effects, even in babies whose mothers insisted on giving vitamins in addition to the formula, where the label on the can clearly states that the vitamins are already in it.
I would not be concerned at all since the bioavailability of Vit A from foods is very low. For instance, a sweet potato has 28,058 IU per serving but only a fraction as actually absorbed and stored!
I see you are offline so I'll exit and watch for your return to chat but I can almost guarantee you that your child is fine and his liver enzymes are completely normal as I've never seen Vitamin A toxicity in my over 35 years of pediatric training and practice and this in spite of some pretty aggressive Vit A treatments for certain medical conditions where it is used.
After weaning from breast or formula and especially after 2 children do not need additional vitamins as long as they are consuming a fairly normal and well balanced diet.
You were following your doctor's recommendation and that of the manufacturer as the RDA assumes everyone is consuming a normal diet that contains vitamins and the only deficiency we ever see is with iron in kids who don't transition to a diet of foods and stay on cow's milk without any other vitamin sources and become iron deficient.
I assure you he is fine and I've never seen toxicity from A in children consuming a normal diet and taking vitamins. I had a large ADHD and epilepsy population in my former practice and did liver enzymes all the time to monitor for toxicity from the medications they were taking. Many were on vitamins due to their poor diet as a side effect of the treatment and their liver enzymes never rose as a result of vitamins.
He likely does not need it if he is eating a pretty normal diet. Granted, toddlers eat pretty strange diets sometimes.
D is a good idea since sun exposure should be limited, however it is rare that a kid does not get enough exposure as it only takes a few minutes daily. As to Vit K, it is very poorly absorbed and we manufacture our own K in our intestines so not really necessary.
Here is a link to a good reference for age appropriate vitamin RDA:
Probiotics are fine when taking antibiotics to help restore the depleted "good" bacteria.
I looked at his website and have to say that while none of it looks harmful, to your body a vitamin is a vitamin! It doesn't matter whether it is manufactured or synthetic as it looks the same to your metabolic systems relying on these co-factors to work properly. Folate is just another name for folic acid so this is a "distinction without a difference" I'm afraid!
I tell parents to buy the cheapest brand of vitamin they can as the FDA regulates the contents, just as it does the makeup of generic medications, which are identical to the brand name but way less expensive.
I'm always a bit wary of "experts" who sell stuff, even Dr. Oz who the medical community generally dislikes for all of his endorsements of some pretty hokey products, for which he is paid millions!
Vitamins are fine taken as directed. As to the beneficial effects of manufacturers and websites like Dr. Furhman, it remains to be seen as their really isn't much real research to back up most of their claims. I always follow the sage old advice we get in medical school: primum non nocere, which translates as "first do no harm"!
I'm sure he is fine as kids have the ability to withstand all kinds of things thrown at them by parents and well-intentioned doctors even!
DHA/EPA are essential for healthy brain growth and added to all formulas now. Beyond infancy they are less important and consumed in lots of products anyway but the brain is not as dependent later. A daily probiotic for allergies has no real science behind it nor does a daily multivitamin but are NOT harmful so don't worry.
FYI: I take a multivitamin, 3000 IU of Vitamin D, C, CoenzymeQ, and a mouthful of other supplements myself but at the doses supported by such real experts as Dr. XXXXX XXXXX, here in Dallas.
Not to worry.
Here is a good article by an internist regarding Dr. Fuhrman's assertions:
All women need vitamins with D and folate (or folic acid!)
And iron for sure.
A prenatal vitamin fulfills all of those requirements.
I recommend all girls start such a vitamin at puberty.
Not if they were eating a pretty good diet (cheerios, mac and cheese, PBJ!) or if my wife or any mother was worried.
Yep as it won't hurt them and keeps peace in the family.
Any persistent cough in a child needs to be evaluated for the common causes as it is never normal: sinusitis, bronchitis, asthma, allergy, etc.
Any cough lasting more than 2 weeks need to be evaluated.
Cancer is not in the differential for a child with a chronic cough. I suspect he has allergies and perhaps a little asthma so I would ask his doctor first to rule out an infection, even without fever, and then maybe a trial on a bronchodilator like albuterol to see if that helps.
Dark circles can be allergies, sinus infection, or both.