It is not written in large print, but this is common. In this case, vitamin E is connected not as a biologically active food supplement, but as a food supplement.
The biologically active food supplement is vitamin D. That is, it is good for health, there is little of it in food, and a good manufacturer mixes the vitamin into food or sells it to you in capsules. We can say that the manufacturer cares about your health.
Vitamin E is a different story. It is also good for health, and not all products contain a lot of it. The manufacturer may well take care of your health and sell you multivitamins with vitamin E. But this is one side of the coin.
The beauty of vitamin E is also that it is a powerful antioxidant. In our body, it protects cell membranes from burning with active oxygen and other chemicals.
Therefore, food manufacturers use vitamin E as a dietary supplement.
A food supplement differs about a biologically active food supplement, in that it protects not our health, but the health of the product itself. The manufacturer doesn't care about your health.
It is with the goal of preserving the product that gummies add solid trans fats to their muffins. Trans fats are a poison to the heart, but cupcakes with them hold their shape like stone. Nothing personal. Business only.
So vitamin E is added to a capsule with vitamin D so that peanut butter does not oxidize in this capsule.
The antioxidant properties of vitamin E allow it to preserve fat in its original form. Otherwise, the product will go rancid, and the capsules will then regurgitate nasty things. If the capsules regurgitate bitter, then you will no longer buy the second bottle. So?
It would seem that in the case of vitamin D we can only rejoice. For the same money, we get both vitamin D and vitamin E in one capsule. This is approximately the case. If you're lucky.
The fact is that our body can digest as many as eight different isomers of vitamin E. Some of them are useful, and some are not particularly.
The same vitamin E, which is called alpha-tocopherol and which is written on labels in large print, is uniquely beneficial.
But gamma-tocopherol is not that good. Rather, it protects against rancidity better than others, but for some reason it also provokes allergic inflammation in our lungs. It is harmful.
Fortunately, standard alpha-tocopherol neutralizes the harmful effects of gamma-tocopherol. Therefore, on average, mixtures of such vitamin E relatives are not hazardous to health.
Do you read the composition of the supplements you buy?