Weird Things That Can Make You Fat
"Must be my thyroid." That's what a lot of us say after we've packed on the
pounds. It can't be the 3,500-calorie, high sugar and high fat diet we're
consuming, eh? Well, I have good news - there are some weird things out
there that can truly make you fat and give your excuse-making a little flare and
1. Viruses. Many viruses have been found to promote obesity in animals and
scientists are now speculating that they likely cause the same in humans. 
Turns out they can harm the hypothalamus and pituitary which control appetite,
metabolic rate and energy consumption.
2. Your Father. This one is really bizarre. It turns out the way your
Dad ate at conception, as in yours, can profoundly influence your DNA and make
it easier for you to put on weight for the rest of your life. Scientists are
just now discovering that if dear ol' dad ate a high fat diet when he was busy
bringing you into the world, it actually can change your epigenome.
Epigenomes are molecules attached to our DNA that either turn on or turn off
genes.  And, for the coup de grace, your dad's high fat diet also predisposes you to diabetes as well.
For more details, read my link on the Strange World of Epigenetics.
3. Obesogons. Chemicals can also program you for a lifetime of
fatness. Scientists have discovered a whole family of chemcals that induce the
birth of new fat cells during organogenesis, i.e. the very earliest stages of
your development when organs and tissues are first forming. That's the last
thing any of us need are new fat cells, that we wouldn't have had in the first
place, terraforming around our precious midsection. Remember: unless you
do lipo, you get to keep those fat cells for the rest of your life. For
more information, see my link on Obesogons.
4. Your Mom's Pregnancy Diet. Scientists recently discovered that if
your mom ate a low carb diet when she had you, she unknowingly changed your epigenome (via methylation) and
switched on a gene that greatly increases your chances for obesity.  (For more dangers of a low
carb diet, see my link on Atkins' Diet Side Effects.
1) Obes Rev, 2010 Apr, 11(4):289-96. Epub 2009 Oct 27, "Viral obesity: fact or
3) Diabetes, April 6, 2011,"Epigenetic Gene Promoter Methylation at Birth Is
Associated With Child’s Later Adiposity"