Vaccines expose your immune system to a harmless version of the virus proteins so it can destroy when it comes in contact with it. There is nothing unnatural about it.
"The next key ingredient on the list is the lipid molecule, a small ball of fat, that contains four components. Some of the components, like cholesterol, are natural to the body. Other components, like the polyethylene glycol (PEG), are not.
PEG is used in a range of pharmaceutical, cosmetic and food products,
according to FullFact.org, a registered charity and nonprofit company from England that fact-checks and debunks false or misleading claims.
There have been rare cases of allergic reactions to products with high concentrations of PEG, such as some commonly used laxatives, but the Pfizer vaccine contains a tiny amount of the substance – only enough to maintain the integrity of the lipid molecule. "
But yes more than likely it is harmless. Id prefer the natural form of covid,which recently studies are showing it may fare better against variants. But people should understand their body,and make choices on what they think it can handle. There is new science that shows you should starve certain viruses of food,and of glucose. But their are certain viruses where withholding glucose is deadly. They are finally coming around to the idea that maybe we should simply listen to our bodies. Down to listening to the cravings. They think maybe we have evolved to the point our bodies will crave what we need,to heal that particular virus. I would argue weve had that ability all along. I listened to my body and survived covid,now i have the real antibodies. I am not obese though.
Edit-PEG May not be in Pfizer like the article says