Hi, I suppose when we are using any supplements, it is best to understand how they are made and by who.
There are so many products in the market that claimed that they are the best but nowadays we are noticing more news of people getting poison by the products themselves.
I would suggest we have to know more about the products before we buy them.
I would suggest the followings
1)ask whether they are organic? and is the organic certifed by China or Malaysia or USA or Japan, Different countries make great differences.
2)If not cert of organic, then ask about the process of making the of product.If they are not willing to tell you or dont know, i suspect the products are not natural. Chemicals may have added.
3)Test products. Take vitamin C for example. Put one vitamin C tablet in a 36 degree c water.(same temp as our body) and see how long does it take to dissolve. Good vitamins will dissolve within 15 mins - 20mins.
4)For Omega 3 capsule. Read the labels.The ratio should be EPA
HA 3:2. We should not look at the mg but the EPA vs DHA. The company can fool us by just writing "Fish oil 1000mg" but what really is needed in our body is EPA and DHA.
Testing of Omega 3. Open the capsule and put it on a styloform. A good Omega 3 will not burn the styloform. A poor quality omega 3 will burn it. You can leave it for a week and see. Cos some omega are not concentrated, they will not not burn the styloform immediately.
Burning of the styloform means it contain a chemical same as the one in our nail polish. We will be eating the chemical if we eat that omega 3.
One of my friend test one and leave it for a week unintentionally, and was surprise the see the styloform actually melts. And she quickly throw the whole bottle of Omega 3 away.
Hope this helps.