) are for food intended items. HOW one will use/handle the items is very important to the toxicity levels. Remember lead-based wall paints? The lead doesn't jump off of walls to kill children. It is an inert material, like most of the items you mentioned. But children are known to peel paint off walls and eat it. So lead based paints are a no-no these days. 
It is the constant touching and the hazard of lead leaching from the cadmium and into skin. That's why the jewelry someone mentioned above, made with the lead paint was more dangerous. One presumes that a person wearing it for it's intended purpose would be wearing it for several hours a day. Some people sleep with jewelry on. The exposure to absorbing the lead is greater.
Another PSA for everyone: Do only use pottery/china for it's intended purpose. If it was not originally designed for food, do NOT use it for food.
As a ceramic artist/potter, many of us were told of a horrible story a long time ago - mostly to teach us to always use food-safe glazes, no matter what we are making:
A mother bought a beautiful, brightly colored, handpainted, glazed vase from Mexico or Italy, that she used as a carafe instead, to store and serve her son's daily orange juice. She thought it would brighten his day to see that carafe each morning.
Orange juice and citric acids, like lemons & tomato sauce, leach out toxic chemicals from pottery/glass glazes faster. We potters often use a slice of lemon as a quick, studio test, to test the softness of glazes. If a lemon can change the appearance of a glaze overnite, it is too soft and may leach other chemicals, not just lead.
Since the maker of the VASE, never in a million years thought the vase would be used for food purposes, there was no warning label put on that the glazes were made with lead. NON-food (intended) products do not need warning labels, even in the U.S.
After several months of drinking o.j. every day from the poisonous vase/turned carafe, the child died of lead poisoning. It wasn't until after, that they figured out what the cause was. The mother was naturally devastated.
NONE of the items you mentioned (except the protein shakes
It is presumed someone does not pick up batteries every day and licks the lead.
I missed the info on protein shakes. Eww! I'll have to research that one.
Going back to correct the posts, lead is lead and cadmium is cadmium, separate and dangerous, depending on the degree. 
Whoops, typos on my part.
I just thought I'd point it out since there are probably alot of parents here concerned about the glasses and didn't want them to be confused.
I figured that because you seem to know your chemicals
Some DISers don't have the time to watch TV or get info elsewhere. (That saying "I learned it from the DIS." 
) And if they repeat info where I accidentally, inadvertently mixed up the two chemicals, and then they tell other parents not to use the glasses and also mix up the chemicals (because of me, 
) they lose credibility when someone realizes cadmium & lead are different. Those parents may continue to use the glasses, because they didn't trust the part of the info that was correct. I certainly don't want that.
The part about "hazardous waste" was a bit tongue in cheek, but many of the items you listed, once done for their intended use (batteries, computer screens, biocides and antiseptics) are by definition hazardous waste. I worked for a hazardous waste company for many years, and saw to the disposal of many "normal" household items you listed that, by government regulation, were hazardous waste. Many of these items would never have been considered hazardous when people bought them, but with regulation changes, they became illegal to dispose of normally during ownership.I seriously doubt these cups are "hazardous waste". They have trace amounts, slightly higher than the "protective" level (whatever that is). And the recall is voluntary.
Here's where you can find cadmium in your house TODAY:
Batteries
Plating on iron and steel
Solders
Alloys in copper wires
Fuses
Pigments in plastic, ceramics, paints, inks
Colored glasses (any other painted glasses in your home, in other words)
Used as a stabilizer in plastic, PVC
Television and computer screens
Solar cells
Biocides and antiseptics
And evidently also in some Protein Shakes!
So I gather you'll be treating your whole house like a toxic waste site.
The part about "hazardous waste" was a bit tongue in cheek, but many of the items you listed, once done for their intended use (batteries, computer screens, biocides and antiseptics) are by definition hazardous waste. I worked for a hazardous waste company for many years, and saw to the disposal of many "normal" household items you listed that, by government regulation, were hazardous waste. Many of these items would never have been considered hazardous when people bought them, but with regulation changes, they became illegal to dispose of normally during ownership.
Hey, if it's voluntary, you can keep whatever you want, but with people considering whether or not to keep these glasses, I thought it was cool to throw my 2 cents in. Good luck with those protein shakes.
I never touch that stuff. Loaded with sugar and all kinds of perfectly legal chemicals - blech!
I only have one Shrek glass and I'm keeping it.
I'm puzzled as to what happened when McD's had them tested and why the Cadmium wasn't found then? Then some outside firm found the stuff? I need to find out who this outside firm is. I'm not usually suspicious but....
) But, let's say, a random number to be used for my example, 
it is 4% leaching of cadmium is allowed. 
) 
That 4% I randomly picked out is for U.S. regulations. In another country, their regulations may be 2% or a third country it is 6%. 
Just kidding there. 
