General Practice 2022

Baby developmentê at 8 months: weight, sleep and nutritionção

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Baby developmentê at 8 months: weight, sleep and nutritionção
Baby developmentê at 8 months: weight, sleep and nutritionção

The 8-month-old baby already has more strength and energy, in addition to being more attentive and curious, because he is becoming more aware of the environment that surrounds him and begins to notice what is happening around him, to miss of the mother and strange people who are not familiar.

At this stage, the baby likes to play and that is why it should be stimulated with activities that help in its development, such as hide-and-seek or plug-in toys, for example. In addition, as the baby can already perceive sounds, hearing and speech should be stimulated by reading, singing and talking with the baby, who can already understand his name and the word “no”.

At 8 months, in addition to breastfeeding and/or use of formula, the baby's diet should be as natural as possible, as up to 2 years of age is the stage of development of taste, which will be reflected in their preferences in adult life, and foods should be introduced separately to experience different flavors and textures.

It is important to remember that every baby is unique and has its own pace of growth, sleep, speech and play. Therefore, in cases of doubts about the baby's development, it is recommended to consult a pediatrician.

Baby weight

The table below indicates the ideal baby weight range for this age, as well as other important parameters such as height, head circumference and expected monthly weight gain, according to the World He alth Organization:




6.9 to 10.7 kg 6, 2 to 10.1 kg


66 to 75 cm 64 to 73.4 cm

Head circumference

43, 3 to 45.8 cm 42 to 44.7 cm

Monthly weight gain

450 g 450 g

If the baby presents values ​​above or below these ranges, it is important to consult the pediatrician to assess its development.

Baby development

The baby at 8 months already has more strength and energy that allows him to sit alone and hold on to a chair or sofa to try to get up on his own. At this stage, it is important to keep away objects that could hurt or cause harm to the baby, such as power cables, lamps, glass vases, medicine or insecticides, for example. In this way, the house is prepared and safe for the baby to move around when he starts to crawl, which can happen from 8 months onwards.However, some babies take longer to crawl or try to get up on their own, and some go straight from rolling to walking, this varies greatly from baby to baby.

At this stage, language and communication skills continue to develop and the baby may begin to make sounds such as "give-give" and "pap-pap". In addition, the baby also begins to better understand the words that the parents speak, so it is important to talk and read to the baby, put on songs or sing to stimulate hearing, and thus introduce new sounds, syllables and simple words, encouraging the baby to repeat what he hears. During this period, the baby also begins to understand the word “no” and respond to her name.

At 8 months, the baby does not like to be still and is already able to manipulate toys with relative ease, transferring objects from hand to hand, hitting blocks together, throwing a ball or fitting a series of cups of different sizes to each other.In addition, it is important at this stage to look into the baby's eyes while playing and talking to him, as it stimulates his mental and social development.

The 8-month-old does not like to be alone and may become anxious or sad when he realizes that the mother is leaving or that he will not be with her. To help reduce separation anxiety, you can offer your baby an object to make him feel safer, calmer, and more comfortable, such as a blanket or a toy that the baby enjoys.

In addition, at this stage the baby already recognizes familiar faces and may feel fearful, restless, anxious, insecure or tearful in the presence of strangers.

Watch the video with some tips to help baby's development:

Baby sleep

Baby sleep at 8 months is calmer and he can sleep from 12 hours to 14 hours a day, straight or divided into two periods, and he can also take naps of 20 to 30 minutes during the day.

Games and activities

Baby at 8 months needs games and activities that stimulate intellectual, sensory development and motor coordination, such as offering toys and objects of different colors, shapes, sizes and textures, encouraging the baby to fit objects such as cubes or balls, or even the lid on a pan, play hide and seek, put the toy far away to encourage the baby to reach it or put the floating toy in the bathtub at bath time, for example.

It is important that activities are carried out in a safe place for the baby, preferably on the floor and away from objects that could hurt the child.

Baby Feeding

From the age of 6 months, the Brazilian Society of Pediatrics recommends that other foods be introduced in the baby's meals, maintaining breastfeeding and/or formulas until 2 years of age and, in accordance with WHO recommendations and the Ministry of He alth should offer three meals a day for breastfeeding babies and five meals a day for babies who are not breastfed.

Baby's food at 8 months should be as natural as possible, including s alty or fruity porridge, soups, proteins such as meat or chicken, as long as they are not large pieces that can cause the baby to choke, in addition to foods easily digestible like rice, potato or pasta. Learn more about feeding your baby at 8 months.

To stimulate the baby's taste development, you can give each food separately prepared with different textures and in different ways. In addition, if the baby has an allergy, it is possible to identify the type of food that caused it.

At this stage, foods such as peanuts in flour can already be offered to the baby, due to the risk of aspiration, eggs, fish or seafood, and are even recommended by the Brazilian Society of Pediatrics as a way to avoid the development of allergies in the future.

However, some foods should be avoided such as flavored gelatin, sweets or stuffed cookies, as they have no nutritional value, can harm he alth, increase the risk of obesity or diabetes, in addition to harming baby's teeth.See the complete list of foods that should be avoided by babies up to 2 years old.

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