I know of no empirical evidence to support that. It sounds like some kind of Propaganda from a mother-in-law...
La nourriture de basse qualité peut mener à un QI plus bas, une alimentation de basse qualité peut amener un QI plus bas.
It can lower their IQ without the money for proper educuation.
No, a person cannot intentionally lower their IQ score. IQ is a measure of cognitive ability and is not something that can be easily changed. It is influenced by a combination of genetics, environment, and education.
If you smoked and then asked this question, it would prove that your IQ is shot.
It is doubtful that it will lower it. But it is unlikely to raise it either.
Obesity has nothing to do with IQ.
Koko the gorilla was estimated to have an IQ between 70 and 95, which is lower than the average human IQ of 100.
Actual IQ cannot be raised or lowered, except by physical trauma (which can only lower it). However, tested IQ can change, though usually not significantly.
The cast of Food IQ - 2012 includes: Eftyhis Bletsas as Himself - Host
A high IQ is much better than a lower one.
A high functioning DS can have an IQ in the 60's most are quite a bit lower.
Brainwashing centers that lower your IQ.