Health products are what some of the largest Amazon sellers are making millions in profit on. This is our most popular category that we ungate and Its also the one that is the most difficult to get approved.
One of the biggest issues is in the area of supplements as there are so many fake and in some causes dangerous manufacturers from outside the US.
There are thousands of brands that you can resell with retail arbitrage and the profits to be made are huge. We frequently feature health products on our arbitrage lists and personally have experience with reselling them.
Your biggest profit will be in getting a private label product as you can easily source a supplement for $5 that you can net $20 per bottle. However you have to extremely careful on where you are sourcing from.
We highly recommend using only a US based sources as they have the most stringent manufacturing standards which insure you are selling a quality product. Selling low quality products can cause many issues with both your seller account and customer feedback.
There are a lot of restricted brands in this category and again Amazon will inform you of this when you create your product listing.
In general 60% or more of automotive products are NOT brand restricted.