Calcium itself is a mineral element with a low absorption rate. Excessive and improper calcium supplementation can easily lead to constipation in babies, along with complications such as loss of appetite, nausea, and indigestion.
Why do babies who take calcium supplements get constipated?
Although calcium absorption is low, babies also have a certain ability to excrete calcium. So why do babies who take calcium supplements still experience constipation? This is because calcium in the body easily combines with undigested food residues in the intestines, such as oxalic acid, phytic acid, phosphoric acid, and fat. This forms insoluble, hard substances that are difficult for the baby to expel, leading to constipation.
Eating with oxalic acid-rich vegetables
Some vegetables, such as spinach, snow chard, amaranth, water spinach, bamboo shoots, onions, water bamboo, and edamame, contain oxalates that can easily combine with undigested calcium in the baby's body to form calcium oxalate. This affects the baby's absorption of calcium and can cause constipation.
Eating with fatty foods
When giving a baby calcium supplements, it is crucial not to administer them with fatty foods. When too much fat is consumed, the free fatty acids produced after digestion can easily bind with calcium, reducing its absorption. The unabsorbed calcium then enters the stool, causing constipation in the baby.
Eating with fiber-rich foods
When excessive amounts of dietary fiber from coarse grains are consumed, the plant fiber components can also bind with calcium, reducing its absorption and causing calcium precipitation, which leads to constipation.
Mixing with milk or other foods
Some parents like to crush calcium tablets and mix them with milk or food to feed their baby. This practice is highly unscientific. For calcium tablets mixed in food, the baby can absorb at most 20%; the rest is excreted after digestion. Moreover, milk and calcium easily form curds, making both difficult to digest and easily causing constipation.
Solving constipation for babies on calcium supplements
Although parents understand that calcium supplementation is very important for babies, knowing how to do it effectively is not easy! Feeling a bit overwhelmed? Don't worry, here are 7 secrets for supplementing your baby's calcium.
Don't let calcium meet oxalic acid
During the baby's calcium supplementation period, it's best to blanch oxalic acid-rich vegetables like spinach in hot water before eating. Alternatively, schedule the calcium supplement to be taken 2 hours before or 3-4 hours after consuming such vegetables.
Calcium absorption is better before bedtime
Sleep is a prime time for growth and when bones have the strongest absorption capacity for calcium. You can give your baby easily absorbable calcium products before bed to ensure full absorption.
Vitamin D promotes calcium absorption
For vitamin D supplementation, it's best to use sun exposure or cod liver oil. Sunlight is a natural source of vitamin D, so let your baby get some sun, for example, 1 hour in the morning and 1 hour in the afternoon. The recommended intake of cod liver oil is 400-800 international units per day.
Choose calcium supplements wisely
Select baby-specific calcium products that are from a good source, highly absorbable, have a good taste, and are gentle on the stomach. Generally, you can choose well-known products with a single calcium source, but be careful not to follow advertisements blindly. Always check the calcium content, absorption rate, and solubility. Of course, the best approach is to have a professional doctor recommend a calcium product for your baby.
Calcium dosage should be appropriate
Scientific studies show that calcium absorption is highest when a baby's intake per dose is 50 mg or less. Therefore, it's better to give smaller amounts of calcium supplements more frequently throughout the day to ensure a steady supply of calcium.
Keep a calcium supplementation diary for your baby
Parents can keep a calcium supplementation diary for a period to accurately calculate the baby's daily calcium intake. If the day's total is below the baby's basic requirement, it means the calcium supplementation was insufficient for that day, and vice versa. Over time, you'll naturally get a better sense of your baby's needs.
Expert Advice
Don't overdose on Vitamin D
Although Vitamin D helps with calcium absorption, it's important to remember that it is not a supplement to be taken in excess. If a baby takes too much Vitamin D, it can lead to an accumulation in the body, causing Vitamin D poisoning, which in turn can lead to decreased appetite, nausea, and weight loss. It is recommended that parents follow a doctor's guidance to scientifically supplement their baby with Vitamin D.
Breast milk is the best source of calcium
Breast milk is the best way for a baby to get calcium. The ratio of calcium to phosphorus in breast milk is 2:1, which is optimal for a baby's calcium absorption. A breastfed baby can get 225-250 mg of calcium per day from breast milk, which is enough to meet the developmental needs of a baby under 6 months. For babies aged 8 months to 1 year, only a small amount of calcium supplementation is needed, about 75-100 mg per day.
Formula milk is well-absorbed
For babies who are not breastfed or have started on solid foods, formula milk and other dairy products are the best choice for calcium supplementation. Generally, 800 mg of formula milk contains about 600 mg of calcium, which is sufficient to meet the daily calcium needs of a baby aged 0-3 years. For babies over 3 years old, you can appropriately increase the calcium intake by about 100-200 mg per day.