通常，母乳喂养的宝宝饿了就会喝奶，饱了就会停止喝奶。而配方奶喂养的宝宝往往比母乳喂养的宝宝要重，胃口的大小也是多种多样，对营养的需求每天、每月都会发生变化。这听起来挺复杂的，但其实只要你按照以下的准则并定期到儿科医生那边检查就好了。

我们的指导方针是针对前4~6个月为纯配方奶喂养，其后为配方奶+辅食喂养的一岁以内的宝宝。

一天之内别给宝宝超过0.9kg的配方奶，一旦宝宝开始接触固体辅食，你就应该相应的减少配方奶的量。儿科医生会告诉你你的宝宝哪里不符合生长发育的曲线，并确保你的宝宝稳定生长及奶量多少。小贴士：如果你的宝宝是母乳和配方奶混合喂养的，你可以向儿科医生咨询更详细的建议。

配方奶喂养的问题解决方案

如果你的宝宝在配方奶喂养上有什么问题，我们的工具可以帮助你解决。在4~6个月以前（宝宝尚未添加辅食以前）宝宝需要喝多少奶，这里有个经验法则：按照宝宝体重来计算为：0.156（kg）x体重（kg）=每天需要的配方奶量 如果宝宝体重6磅，那么一天就需要15盎司的配方奶。如果宝宝重10磅，一天就需要大约25盎司的配方奶。这些数值并不是严格的规定，而是一个大概的平均数值。每个宝宝的需求都会有不同——换句话说，有时候宝宝吃的多一点有时候吃的少一点。

如何知晓宝宝饿了？
懂得宝宝饥饿的标志可以帮助你更好的了解宝宝什么时候及需要喝多少奶。

新生儿：新生儿表现饥饿的方法就是哭闹。但如果你等到宝宝哭闹了才知道要喂配方奶就已经迟了。早期的表现有：咂嘴、吮吸状、头跟着你抚摸她的小脸的手转、把手伸进嘴里。

改变胃口：在快速成长期宝宝总是会饿，一般发生在出生10~14天或者是3周、6周、3个月和6个月的时候。如果宝宝感觉不舒服，胃口也会下降。

想要更多：如果宝宝很快就喝完奶了并且到处看想要更多的时候，试试再添加1~2盎司奶粉。如果你给的太多，宝宝可能喝不完就浪费掉了。

喂太多：宝宝发生呕吐，说明你喂得太多了（吐奶是正常的，但呕吐不是，这两点要区别开来）如果宝宝喝完奶有胃痛（脚举起来或者胃部很紧）也是吃太多的表现。

这样的表现不一定是饿了：宝宝哭的时候不要第一时间递奶瓶。先找找宝宝哭闹的原因——尤其是在你刚问完奶没多久的时候——也许宝宝哭闹是因为尿了或者冷了热了。或打嗝或只是想吸引你的注意。

宝宝出生的第一周，按需喂养即可。不过度喂养宝宝的体重就会维持在健康的水平。大多数的新生儿每隔几个小时就会想要喝奶。在第一周，你可以试试每次喂1.5到2盎司的配方奶，慢慢再添加至每3~4小时喂2~3盎司。

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How much formula: Where to start

in general, babies eat when they're hungry and stop when they're full. But formula-fed babies tend to be heavier than breastfed babies, appetites vary among babies, and each baby's nutritional needs change from day to day and month to month.That may sound complicated, but if you follow the basic guidelines below and check in regularly withyour baby's doctor, your baby will likely be on track.

Our guidelines are for babies who are exclusively formula fed for the first four to six months, and then fed a combination of formula and solids up to age 1.Don't give your baby more than 32 ounces of formula in a day, and once he starts eating solids, you'll probably need to cut back on the amount of formula you feed him. Your baby's doctor can tell you where your baby falls on the growth charts and help make sure he's growing steadily and getting a healthy amount of formula.Note: If your baby is getting a combination ofbreast milkand formula, talk to his doctor for more detailed advice.

Formula Feeding Problem Solver

If your baby's having anyproblems with formula feeding, our tool can help.
 How much formula by weight In the first four to six months when your baby isn'teating any solids, here's a simple rule of thumb: Offer 2.5 ounces of formula per pound of body weight each day.For example, if your baby weighs 6 pounds, you'll give her about 15 ounces of formula in a 24-hour period. If she weighs 10 pounds, you'll give her about 25 ounces in a 24-hour period.These numbers are not rigid rules. They give you an overall average for what your baby is likely to require. His daily feedings will vary according to his individual needs – in other words, he may want a bit more on some days and a bit less on others. How much formula by signs of hunger
Learning to read your baby's hunger cues will help you know when and how much formula to feed your baby.
Your new baby: If your newborn is hungry, she'll eventually cry. But crying is a late sign of hunger. Earlier signs to watch for include smacking her lips or sucking, rooting (turning her head toward your hand when you stroke her cheek), and putting her hands to her mouth.
Changing appetites: Your baby may be hungrier than usual during growth spurts. These typically occur ten to 14 days after birth and at age 3 weeks, 6 weeks, 3 months, and 6 months. And your baby may be less hungry than usual if she's not feeling well.
Wanting more: You'll know that your baby wants more when she finishes the feeding quickly and looks around for more. If she seems hungry after her first bottle, try preparing just an ounce or two more at a time. If you make a larger amount, she may not finish it and you'll have to throw it out.
Getting too much in a feeding: Vomiting after a feeding may be a sign that your baby had too much. (Spitting up is normal, vomiting isn't. Find out how to tell the difference.) Tummy pain after a feeding can also be a sign of overfeeding. If your baby draws up his legs or his tummy seems tense, he may be in pain.(See six other possible reasons for stomach pain in babies.)
It's not always hunger: Resist the urge to respond to your baby's every whimper with a bottle. Consider the possibility – especially if you've recently fed her – that she's crying because her diaper is wet, she's cold or hot, she needs to be burped, or she simply wants to be close to you. For more help, see 12 reasons babies cry and how to soothe them.

In the first week, formula-feed your newborn on demand. After that, it's important not to overfeed your baby so he'll stay at a healthy weight.
Most new babies want to eat every few hours. Start with 1.5 to 2 ounces at each feeding for the first week, and work up to 2 to 3 ounces every three to four hours.

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