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A Rewind to Science Class: Children’s Bone Development

Written by: Dayvin Malifer



Time to read 4 min

Do you recall your notes taken from your anatomy class?

Skeletal system on young bodies, anyone?

Bone development in children is a fascinating subject of study. Unlike the static, fully-formed skeletal structure of adults, children’s bones are in a constant state of evolution.

They are not just smaller versions of adult bones; they are dynamic, living tissues that grow, remodel, and adapt to the stresses of daily life.

As parents, our anatomy class memories can absolutely be useful when ensuring the healthy growth and development of our children which is, of course, our top priority.

This article will give or remind you of key information in understanding how children’s bones develop from being little and fragile to fully-formed bones.

The Basics of Bone Development in Children

Bones are the framework of our bodies, and they play a vital role not just in movement, but also in protecting organs, anchoring muscles, and storing calcium.

Children’s bones are continuously growing and changing, which sets them apart from adult bones in several ways. For instance, children have more bones than adults because as they grow, some of the bones fuse together. The process of bone development, or ossification, begins as early as the sixth or seventh week of embryonic life.

Intramembranous Ossification

This is one of the two methods by which bone development occurs. It involves the direct transformation of mesenchymal tissue into bone and is responsible for forming flat bones like those of the skull.

Intramembranous and Endochondral

Endochondral Ossification

The second method, endochondral ossification, is where cartilage is replaced by bone. This is typical for long bones such as the femur. Children’s growth plates located at the ends of these bones are where new bone is generated during childhood and adolescence.

Factors Influencing Bone Development

Several factors contribute to healthy bone development in children:

  • Nutrition: A balanced diet rich in calcium and vitamin D is essential for bone health.
  • Physical Activity: Regular exercise stimulates bone growth and strength.
  • Hormones: Growth hormones, like estrogens and androgens, and other hormonal factors play a significant role in early bone development.

Understanding the Growth Plate

The growth plate is a layer of cartilage found in children;s bones that is the source of bone lengthening. It’s a complex and dynamic structure that is the center of many biological processes.

Bone Disorders in Children

While most children develop healthy bones as they grow, some may experience bone disorders. These can arise from genetic factors, nutritional deficiencies, or other health conditions.

That’s why the best nutrition should be given to toddlers because this is the phase where their bodies are building the bone density that will support them for the rest of their lives.

Adequate intake of essential nutrients, particularly calcium and vitamin D, is highly important during this stage to ensure proper bone growth and to help prevent disorders that could affect children later in life.

The Role of Supplements in Bone Health

While a balanced diet is the best way to get these nutrients, it may not always be possible to achieve this through food alone.

This is where supplements can play a supportive role. Supplements designed specifically for toddlers, like TruHeight Toddler Bone Growth Gummy, can provide a convenient and effective way to ensure that your little ones get the necessary nutrients they need for healthy bone development.

Comprehensive Nutrition for Toddlers

In addition to bone health, overall nutrition is crucial for toddlers. The TruHeight Toddler Complete Nutrition offers a blend of essential vitamins and minerals to support the overall growth and well-being of toddlers.It’s a comprehensive solution that aids in filling any nutritional gaps in a child’s diet, promoting not just bone health but also supporting immune function, brain development, and more.

The Journey from Cartilage to Bone

When babies are born, some of their “bones” are actually made up of a flexible cartilage. As the child grows, this cartilage hardens and turns to bone, and some bones fuse together. This transformation is crucial for the child’s physical development and continues until their late teens or early 20s.

The Role of Cartilage in Bone Development

Children have more dense, elastic tissue (called cartilage) in their joints and other bony structures (such as the ribs). This allows the bones to continue to develop and grow as the child grows. This extra cartilage develops into bone over time. By about age 16, most extra cartilage has matured into bone. This means your toddler still has a lot of time to develop those soft tissues.

Ensuring Healthy Bone Development

Parents can play a significant role in ensuring their children’s bones develop properly by:

  • Providing a diet that includes plenty of calcium and vitamin D.
  • Encouraging regular physical activity, which can include sports, dance, or simply playing outside.
  • Monitoring their child’s growth and looking out for any signs of bone disorders or abnormalities.
  • Getting them the right supplements to nourish their bone health.


Understanding children’s bone development is essential for manifesting a healthy growth environment. By being aware of the factors that influence bone growth and the potential disorders that can occur, parents can take proactive steps to support their children’s health. Remember, the foundation of a child’s physical health is laid down during these formative years, making it crucial to focus on proper nutrition, exercise, and overall well-being.


At what age are children's bones fully developed?

We're happy to let you know that we haven't received any reports of negative side effects from TruHeight since we began our company. It's always important to listen to your body and if you have any concerns, please consult with your doctor. We strive to provide safe and effective products for our customers, and we're always here to help if you have any further questions or concerns.

What are growth plates in children?

Growth plates, also known as epiphyseal plates or physis, are areas of cartilage located at the ends of long bones in children and adolescents. These plates are responsible for longitudinal bone growth, allowing bones to increase in length as a child grows.

During childhood and adolescence, the growth plates are active and contribute to bone growth by continuously producing new cartilage cells, which then ossify and become bone tissue. This process allows bones to lengthen and grow.

What can I do as a parent to support my child's bone development?

As a parent, you can support your child's bone growth and development by ensuring they have a balanced and nutritious diet that includes foods rich in calcium, vitamin D, protein, and other essential nutrients for bone health. Encourage regular physical activity and exercise, which helps stimulate bone growth and strengthens bones.