Overweight children... is abuse

Ok... I didn't create that meme.  Nonetheless I often wonder why obesity is not against some type of law...?

If a parent starves their child this is considered child abuse - because it is damaging and harmful and can lead to death.

Yet when a parent overfeeds their child - also damaging and harmful and can lead to dozens of problems (such as being bullied and early death via health related issues) - this is not considered child abuse?

If we beat our children it's considered abuse because it is harmful and has long lasting detrimental effects on a person.  We cannot give our children cigarettes to smoke or alcohol to drink.  We cannot give them recreational drugs and even prescription drugs can be a problem.

Yet parents can overfeed their children to the point of obesity and this is NOT considered child abuse.

Why is that?

Is it because the blame is put on companies for creating the unhealthy foods?  In which case why is it not against the law for companies to create such unhealthy foods?  (Same reason why tobacco and alcohol companies are allowed to thrive... taxes & money).

Is it because of the so called 'fat gene' and parents using this as an excuse for the fact that they and their child/ren are overweight.

Is it because children don't immediately die from their obesity and health related issues?  Would it be considered abuse if children died from obesity before reaching adulthood?

Why is obesity not considered child abuse?

What do you think?  Should obesity be considered some type of abuse towards children?  Should their be laws to govern this issue or not?