Does swallowing affect health?

I've read in Men's Health magazine that if your man eats fruit then his man juice will taste sugary and a a faint fruity flavor the next day. Try it!

Stolen from a Playboy FAQ:

Seminal fluid is composed of dozens of chemical components. The
base of seminal fluid is primarily fructose (sugar) and proteins, with
many other trace minerals and substances. Here's a listing of some of
semen's ingredients:

Sugars: Fructose, sorbitol, inositol
Proteins and amino acids: glutathione, deoxyribonucleic acid (DNA), creatine
Minerals: Phosphorus, zinc, magnesium, calcium, potassium
Vitamins: Ascorbic acid (vitamin C), vitamin B12, choline
Hormones: Testosterone, prostaglandins

Semen is a source of highly concentrated, high-quality protein. In
dietary terms, it's comparable to egg whites or gelatin. Besides
protein, semen contains high concentrations of some minerals, such as
zinc, and trace amounts of other important nutrients, like calcium and
magnesium.

In other words, it's 5-20 calories, and is probably good for you (though I'd be skeptical of any 'cure-all' claims). It won't cause any problems, as it's basically sugar water, with a little protein to glue it together. (A French fry is a thousand-fold worse for you. )

Swallowing is ok, but don't' swallow more than, say once every 4 days or so. Also avoid swallowing large amounts at once as some women in porn do with 7 guys or so, this will upset your stomach. I don't think it really whitens your teeth though.

If the tastes is not to your liking, you can use gum or a flavored lube, sometimes a drink of juice will help.

Swallowing is good because of the mentality behind sex in general. Women don't have sex with anyone, nor will they swallow every time. So to choose in doing this is a sign of acceptance, it breaks the final barriers that may impede the relationship with the specific guy. Unless you just like swallowing(very rare).

Hell no and it whitens your teeth!

No, I think swallowing is ok. Just as long as he doesn't have any STDs. I swallow occasionally. I personally think it's kinda hot.

From what I hear it can make your teeth stronger ;) But no, it won't negatively affect your health unless you're allergic or something - and yes, you really can be allergic to semen! Other than that, don't worry about it.