Health Tips
Excessive Calcium Supplementation Carries Risks ⚠️
Pediatrician Shares Correct Supplementation Tips!
18 July 2025

Calcium is a vital mineral for the human body, essential for bone health, dental development, and neuromuscular function, particularly during adolescent growth. However, many people mistakenly believe that more calcium is always better, ignoring the health risks of excessive intake. This article discusses the dangers of over-supplementation and provides expert tips on proper calcium intake from Dr. Hou, Director of Pediatrics at Taiwan’s Cathay General Hospital.
Potential Health Risks of Excessive Calcium Supplementation
Dr. Hou explains that calcium deficiency can stunt growth, but height is influenced by many factors. Sufficient or excess calcium may not increase height further. Daily intake exceeding 2,500 milligrams may be excessive.
Long-term excessive calcium intake can lead to the following risks:
- Increased Risk of Kidney Stones: Excess calcium may combine with oxalate or phosphate in the kidneys, forming stones, especially in those taking high-dose supplements long-term.
- Gastrointestinal Discomfort: High-dose calcium supplements, such as calcium carbonate, may cause bloating or constipation, particularly in those with sensitive digestive systems.
- Blood Vessel Calcium Buildup: Without enough vitamin K2 to guide calcium to bones, excess calcium may deposit in blood vessels, increasing artery stiffening and heart disease risk.
- Nutritional Imbalance: Too much calcium may hinder the absorption of magnesium, iron, and other trace elements, causing nutritional imbalances.
- Risks for Specific Groups: Excessive calcium in pregnant or breastfeeding women may harm the fetus or infant.
Research shows that calcium absorption peaks at about 500 milligrams per dose, with reduced efficiency beyond this amount. Excessive supplementation is not only ineffective but also potentially harmful.

Safe and Effective Tips for Calcium Supplementation
To supplement calcium safely and effectively, follow these recommendations:
1. Prioritize a Balanced Diet: Obtain calcium from natural foods like dairy products (milk, yogurt), dried small fish, black sesame seeds, and green vegetables. Dairy products offer high calcium absorption, suitable for most people.
2. Combine with Essential Growth Nutrients: Vitamin D and amino acids are essential. Vitamin D enhances calcium absorption, while amino acids support metabolism. Moderate sun exposure (15-30 minutes) or vitamin D-rich foods (e.g., salmon, egg yolks) can boost absorption efficiency.

^Dr. Hou states that while calcium supplementation may increase bone density, it alone does not directly increase height. (Source: CTI News)
3. Choose High-Absorption Calcium Sources: Algae calcium, for example, has a high absorption rate and is less likely to cause digestive issues, making it ideal for vegetarians.
4. Supplement in Divided Doses: Adults should aim for 1,000 milligrams of calcium daily. If using supplements, take 2-3 daily doses of 200-500 milligrams each to maximize absorption and minimize side effects.
5. Prevent Calcium Loss: Limit high-sodium, high-phosphorus processed foods and excessive coffee, which can increase calcium loss.
6. Support with Exercise: Impact-based exercises like jumping, basketball, or rope skipping promote calcium deposition in bones, enhancing bone density.

Just 2 Tablets Daily for Easy Calcium and Growth Nutrient Absorption
To help adolescents achieve their ideal height during critical growth periods, we introduce Tenchi GrowthMax Chews (sugar-free formula), a nutritional supplement developed in Japan for ages 5-22. GrowthMax Chews combine three high-absorption calcium sources (eggshell calcium, coral calcium, algae calcium) with synergistic nutrients like vitamin D and amino acids, effectively supporting calcium intake while minimizing the risk of over-supplementation.

Core Ingredients and Benefits
3 Growth Calcium Blend (Eggshell Calcium, Coral Calcium, Algae Calcium): Provides highly absorbable calcium to strengthen bone structure.
- Eggshell Calcium: Derived from natural eggshells and rigorously processed, it is rich in high-purity calcium carbonate, offering a solid calcium foundation for bones and teeth, ideal for adolescents in growth phases.
- Coral Calcium: Extracted from marine coral, it contains calcium and trace minerals (e.g., magnesium). It promotes bone health while providing trace elements to enhance overall metabolic function.
- Algae Calcium: Sourced from specific algae (e.g., Aquamin-F® patented algae calcium), it is rich in calcium, magnesium, iron, and other trace elements. It not only supplements calcium but also promotes bone mineralization.
9 Growth Amino Acid Blend (including Lysine, Threonine, Arginine, etc.): Stimulates growth hormone secretion, promoting bone cell growth.
Patented YGF®Yeast Peptide: Derived from natural yeast, it contains unique small-molecule active peptides that effectively enhance nutrient absorption, activate growth factors, and support bone and cartilage development.
Oyster Extract: Rich in zinc, taurine, calcium, and various trace elements, it boosts metabolism, strengthens bone density, supports cell repair, and delays growth plate closure.
Whey Protein: A high-quality protein source that, when combined with amino acids, enhances growth factor activity and accelerates cartilage growth in the growth plate.
Precious Shark Cartilage Extract: Promotes cartilage tissue regeneration and supports bone cell growth.
Porcine Cartilage Extract: Helps maintain bone health, supporting the strength and durability of the overall bone structure.
Vitamin PREMIX: Includes vitamin D and K for bone growth, along with B vitamins and folic acid, critical for growth and development, providing comprehensive support for adolescent bone and overall health.
Scientific Evidence
Clinical trials conducted by three major Japanese research institutions show that over 92% of participants experienced an average 34% increase in height growth rate after three months of continuous use.
- Stimulates Growth Hormone Secretion: Effectively promotes pituitary gland secretion of growth hormone, accelerating bone cell growth.
- Delays Growth Plate Closure: Provides adolescents with a longer growth window, helping overcome genetic height limitations.
- Comprehensive Nutritional Support: Targets bone health during developmental stages, supplementing key nutrients often lacking in daily diets.

Frequently Asked Questions
🔍Do I need to take additional Calcium supplements with Tenchi GrowthMax Chews?
In general, additional calcium supplements are not necessary. The recommended daily serving of Tenchi GrowthMax Chews provides sufficient calcium for the body’s needs, with a high-potency growth formula containing 450 mg per serving.
Recommended Serving Size:
Ages 5-15: One serving daily, two chews per serving
Ages 16 and above: Two servings daily, two chews per serving
🔍Can taking GrowthMax Chews after age 18 still increase height?
Yes, taking GrowthMax Chews after age 18 can still promote height growth! While most people’s growth plates close after puberty, studies show that some individuals’ growth plates may remain partially open until age 22, offering potential for growth. Clinical trials of GrowthMax Chews indicate cases of height increase in participants under 22 years old.
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