Best way to get it is dietary.
yup! We would be healthier and need less supplements if we eat real (as unprocessed by factories etc as possible) foods.
If we stop leaning on convenience and get back to making some of our own meals and snacks as much as possible
some snacks are super easy, like an apple sprinkled with cinnamoninstead of baked apple dessert from store that is heavily processed, sat frozen for a while, they thawed it, baked it, and it sits in plastic container waiting for you to buy it. And you can always cut the apple, put it in a bit of water in a pot and cook it yourself for 5-10 minutes then when removed from heat sprinkle in your cinnamon and a few raisins or dried fruit and walnuts and it’s like eating insides of apple pie without added sugar or dough conditioners and processed flour to spike your blood sugar or otherwise mess up your metabolism and body.
About Omega 3, eat sardines or other oily fish (low mercury ones) a couple times a week and you don’t need to buy omega supplements.