There is absolutely no point to feeding a 7 week old cereal. A baby that age cannot digest cereal. There was a great response to this question on ask yahoo that covers all aspects of this question:
All mammals are protected by the same thing -they can't physically eat food until they are physiologically ready to digest it. For humans this means picking up the food, placing it in their mouth, gumming it, moving it back with their tongue, and swallowing it. The most obvious of course it the tongue thrust that newborns have -this reflex actively keeps food out of their body until they can digest it. But the other steps all have safeguards as well.
For healthy, full term infants the ability to eat food develops around 6-9 months. In recent years there have been numerous studies looking at the risks of certain things (allergies, asthma, anemia, etc) in relation to when solids are started and almost all have shown that the lowest risks are when solids are started between 6-9 months.
However it should also be noted that babies with allergies may refuse solids for up to a year, and that breastmilk is nutritionally complete for at least the first year of life despite earlier statements that it is not. An unpleasant feeling in the mouth is often a first sign of allergy and may cause babies to spit out rather than swallow allergenic foods. This is a very useful safeguard that should not be overridden.
http://www.llli.org/FAQ/solids.html
Your baby is starting to get ready for solids when:
* he is about four months old
* he becomes more sociable, playing and holding "conversations" with you during a nursing session
* he has a growth spurt and nurses more frequently for a while
* he imitates the chewing motions you make whilst eating -- he is practicing!
You will know that he is really ready to start solids when:
* he is about six months old
* he can sit up without any support
* he continues to be hungry despite more frequent nursing which is unrelated to illness or teething
* he has lost the tongue-thrusting reflex and does not push solids out of his mouth
* he can pick up things with his finger and thumb (pincer grasp)
Babies who are ready for solids can usually feed themselves. Mothers often report that they knew their babies were ready when they picked up food from a plate, chewed it, swallowed it, and wanted more.
http://www.kellymom.com/nutrition/solids...
Signs that indicate baby is developmentally ready for solids include:
* Baby can sit up well without support.
* Baby has lost the tongue-thrust reflex and does not automatically push solids out of his mouth with his tongue.
* Baby is ready and willing to chew.
* Baby is developing a “pincer” grasp, where he picks up food or other objects between thumb and forefinger. Using the fingers and scraping the food into the palm of the hand (palmar grasp) does not substitute for pincer grasp development.
* Baby is eager to participate in mealtime and may try to grab food and put it in his mouth.
http://www.askdrsears.com/html/3/T032000...
How will I know when my baby is ready for solids?
As with all aspects of parenting, watch your child and not the calendar. Besides the developmental milestones above, watch for these ready-to-eat cues in your baby:
* Able to sit with support, reaches and grabs, and mouths hands and toys
* Watches you eat, following your fork as it moves from plate to mouth
* "Mooches," reaching for food on your plate
* Mimicks your eating behaviors, such as opening her mouth wide when you open your mouth to eat. Grabbing your spoon is not a reliable sign of feeding readiness, since baby may be more interested in the noise, shape, and feel of your utensils rather than the food stuff on them.
* Baby can show and tell. Around six months of age babies have the ability to say "yes" to wanting food by reaching or leaning toward the food and "no" by pushing or turning away. Expect mixed messages as your baby learns to communicate. When in doubt, offer, but don't force.
http://www.kellymom.com/nutrition/solids...
The following organizations recommend that all babies be exclusively breastfed (no cereal, juice or any other foods) for the first 6 months of life (not the first 4-6 months):
* World Health Organization
* UNICEF
* US Department of Health & Human Services
* American Academy of Pediatrics
* American Academy of Family Physicians
* American Dietetic Association
* Australian National Health and Medical Research Council
* Royal Australian College of General Practitioners
* Health Canada
Why Delay Solids?
http://kellymom.com/nutrition/solids/del...
http://www.askdrsears.com/faq/fit18.asp
No, you should wait until he is six months old, unless he is not gaining weight and your doctor advises you to start earlier. This subject keeps coming up, and the answer is still the same: the current recommendations (I didn’t make these up) are to wait until six months before starting solids. Starting foods too early can result in digestive or allergy problems later in life. We have learned that the old guidelines of 4 months are just too soon, and I am willing to bet that in ten years we will be recommending later than 6 months. But for now, the six month guideline seems reasonable. Click here, or here, to read previous FAQ's on starting solids or learn more by reading our Starting Solid Foods article.
WHY WAIT? 6 REASONS
http://www.askdrsears.com/html/3/t032000...
http://www.borstvoeding.com/voedselintro...
It appears that a baby's general development keeps pace with the development of his ability to manage food in his mouth, and to digest it. A baby who is struggling to get food into his mouth is probably not quite ready to eat it.
Pureed baby food is 'unnatural'
http://news.bbc.co.uk/2/hi/health/676279...
She said children should be fed only with breast or formula milk for six months, then weaned onto solids to improve control over how much they ate.
This could prevent babies becoming picky about food.
[...]
Solids best
After six months, Mrs Rapley said babies were capable of taking food into their mouths and chewing it.
Therefore, feeding them pureed food at this time could delay the development of chewing skills.
Instead, she said, they should be given milk and solid pieces of food which they could chew.
Mrs Rapley argued that babies fed pureed food had little control over how much food they ate, thus rendering them vulnerable to constipation, and running a risk that they would react by becoming fussy eaters later in life.
She blamed the food industry for convincing parents that they should give children pureed food.
She said: "Sound scientific research and government advice now agree that there is no longer any window of a baby's development in which they need something more than milk and less than solids."
http://www.borstvoeding.com/voedselintro...
The babies who participated in the research were allowed to begin at four months. But they were not able to feed themselves before six months. Some of the younger babies picked food up and took it to their mouths; some even chewed it, but none swallowed it. Their own development decided for them when the time was right. Part of the reason for this study was to show (based on a theory of self-feeding) that babies are not ready for solid food before six months. It seems that we have spent all these years working out that six months is the right age and babies have known it all along!
It seems reasonable to predict that if parents choose to provide babies with the opportunity to pick up and eat solid food from birth they will still not be able to do it until around six months. The principle is the same as putting a newborn baby on the floor to play: he is being provided with the opportunity to walk but will not do so until about one year – because his own development stops him. But: everything depends on the baby being in control. Food must not be put into his mouth for him. Since it is very tempting to do this, it is probably safer to recommend that babies should not be given the opportunity to eat solid food before six months.
http://www.borstvoeding.com/voedselintro...
Many parents worry about babies choking. However, there is good reason to believe that babies are at less risk of choking if they are in control of what goes into their mouth than if they are spoon fed. This is because babies are not capable of intentionally moving food to the back of their throats until after they have learnt to chew. And they do not develop the ability to chew until after they have developed the ability to reach out and grab things. Thus, a very young baby cannot easily put himself at risk because he cannot get the food into his mouth in the first place. On the other hand, the action used to suck food off a spoon tends to take the food straight to the back of the mouth, causing the baby to gag. This means that spoon feeding has its own potential to lead to choking – and makes one wonder about the safety of giving lumpy foods off a spoon