Many supplements are sub-lingual.
If stomach acid is an issue, just take an antacid calcium tablet.
But the biggest problems are simply lack of absorption by any route, and the fact that no one actually confirms that a supplement bottle actually contains that supplement. Supplements are a great way to make expensive pee, and basically thrive on a placebo effect. That’s why supplement companies make them look like real drugs.
The gums are not a direct route to the intestine, there is just a correlation between gum disease and bowel disease.
Many supplements are sub-lingual. If stomach acid is an issue, just take an antacid calcium tablet.
But the biggest problems are simply lack of absorption by any route, and the fact that no one actually confirms that a supplement bottle actually contains that supplement. Supplements are a great way to make expensive pee, and basically thrive on a placebo effect. That’s why supplement companies make them look like real drugs.
The gums are not a direct route to the intestine, there is just a correlation between gum disease and bowel disease.
https://pmc.ncbi.nlm.nih.gov/articles/PMC7933581/