Yes, calcium.
Also:
Info obtained from russellscorner.com
My guess would be that the vegetable with the least nutritional value would be iceberg lettuce.
Actually, iceberg lettuce has no nutritional value, but it can make your guinea pig gassy and constipated. I recommend not feeding them iceberg lettuce, but rather replace it with romaine lettuce.
Yes, however, iceburg lettuce has no nutritional value whatsoever. If you want to feed your bird greens, use romaine, kale, collard, spinach, etc., greens.
They can, but there is a good chance they won't. Also, iceberg lettuce has very little nutritional value, so if you do give it to them, it should be only in very small quantities, to keep them from filling their stomach with worthless food, preventing them from eating foods that are actually good for them.
Iceberg lettuce can NOT cause a rabbit death but it has no nutrients value and it COULD get your rabbit sick. Overall, iceberg lettuce for your rabbit should be avoided.
Iceberg Lettuce.
Nutritional value means to find the nutrients in a food eg. lettuce is water and fibre, well the majority of it.
Iceberg lettuce is quite delicious.
a iceberg is a lettuce
Iceberg Lettuce is not Guinea Pig food and is not a healthy part of their diet. Guinea pigs may eat little pieces of iceberg lettuce as a treat, but will get no nutrition from it other than a little water. Guinea pigs that are given large amounts of iceberg lettuce will fill up on this food which has no nutrition, and it then prevents them from eating as much of their good foods. Eating a diet with lots of iceberg lettuce can cause them to be malnourished, get sick and die if only given iceberg lettuce (sad but true, this lettuce is inexpensive so people may be tempted to give it daily like food- causing their guinea pigs to die of starvation). Guinea pigs need lots of timothy hay and vitamin C rich pellets as the staple of their diet. Things like carrots, oranges, blueberries, green leafy vegetables are great snacks that give them lots of vitamins. Iceberg gives no vitamins, no calories, but makes them feel full- so iceberg lettuce should only be given as a treat in small amounts and try to give them green lettuces instead- the darker the lettuce (spinach) the more nutritional value. Guinea pigs are not allergic to iceberg and will not have an adverse reaction to iceberg- it is safe to give in very small amounts.
well i think it is the valueof nutrition in food. so if you eat lettuce, lettuce has fibre and water in it (majoriy).=so the nutritional value would be higher (fibre and water are good for you!)=
Guinea pigs can absolutely eat iceberg lettuce. If you happen to have extra iceberg on hand, go ahead and feed it to your guinea pig. If, however, you are looking for a tasty treat to buy for your guinea pig, romaine lettuce is packed full of vitamins (it has more vitamin C in it- which is a necessary dietary requirement for all guinea pigs).