What Are the Ingredients in Amway Calcium Tablets? A Detailed Look at Nutrilite Cal Mag D

November 21, 2025 •

2 min read

The human body stores over 99% of its calcium in the bones and teeth. For those seeking to supplement this vital mineral, understanding exactly what are the ingredients in Amway calcium tablets is essential for informed health choices regarding the popular Nutrilite formula.

Quick Summary

An analysis of Amway's Nutrilite Cal Mag D reveals its core ingredients: a blend of plant-sourced calcified seaweed, calcium carbonate, magnesium oxide, and vitamin D. This formula is designed to support bone strength and calcium absorption, often including other minerals like zinc and manganese.

Key Points

Dual Calcium Source: Nutrilite calcium tablets combine calcium carbonate with plant-based calcified seaweed for a potent blend.
Magnesium for Balance: The tablets include magnesium oxide, which is crucial for regulating calcium transport and supporting healthy bones.
Vitamin D for Absorption: Vitamin D is included to ensure the body can effectively absorb and utilize the calcium in the formula.
Sustainable Sourcing: The calcified seaweed in the tablets is sustainably harvested from Icelandic fjords.
Additional Minerals: Some versions of the product, like Cal Mag D Plus K2, also contain bone-supporting minerals like zinc and manganese.
Synergistic Formulation: The ingredients are combined to work together, improving the overall effectiveness for bone health.

Key Ingredients in Nutrilite Calcium Tablets

Amway's flagship calcium supplement, Nutrilite Cal Mag D, is formulated with a combination of active and inactive ingredients to support bone health.

The Primary Calcium Sources

The main calcium sources in Nutrilite Cal Mag D are:

Calcified Seaweed: This plant-based ingredient is sustainably harvested, often from the ocean floor off the coast of Iceland, providing a nutrient-rich form of calcium and magnesium. Amway highlights this source.
Calcium Carbonate: A widely used mineral form of calcium in supplements and antacids, it complements the calcified seaweed.

Supporting Minerals and Vitamins

Essential nutrients work with calcium for optimal bone health:

Magnesium Oxide: Supports calcium transport and bone structure.
Vitamin D: Enhances calcium absorption. Regional products may use D2 or D3. Adequate Vitamin D is crucial for effectiveness.
Other Minerals: Some formulations like Cal Mag D Plus K2 include zinc, manganese, and vitamin K2, which support bone growth and structure.

Excipients and Additives

Standard supplement components like diluents (maltodextrin, corn starch), binders (Microcrystalline Cellulose, Acacia), and coating agents (Carnauba Wax, Hydroxypropyl Methylcellulose) are included for tablet formation, consistency, and ease of swallowing. Nutrilite products are often free from artificial flavors, colors, or preservatives.

Comparison of Different Calcium Sources

Nutrilite's blend of calcified seaweed and carbonate differs from other sources. Here’s a comparison:


Feature	Nutrilite Cal Mag D	Calcium Citrate	Calcium Carbonate (Standard)
Primary Sources	Calcified Seaweed, Calcium Carbonate	Calcium Citrate	Calcium Carbonate
Absorption	Enhanced by Vitamin D, Magnesium, and plant-based sourcing.	More easily absorbed by those with low stomach acid.	Requires adequate stomach acid for optimal absorption.
Origin	Natural, plant-based (seaweed) and mineral.	Mineral.	Mineral.
Best Taken With	Can be taken with meals for best absorption of calcium and Vitamin D.	Can be taken with or without food.	Best taken with food.
Additional Nutrients	Often includes Magnesium, Vitamin D, and sometimes K2, Zinc, Manganese.	Varies by brand; may be combined with Vitamin D.	Varies by brand; often combined with Vitamin D.
Stomach Sensitivity	Generally well-tolerated.	Less likely to cause bloating and constipation than carbonate.	May cause gas, bloating, or constipation in some users.

The Synergy of Nutrilite's Formula

The ingredients are chosen to work together. Magnesium is important to balance calcium, preventing interference with each other's functions. Vitamin D is crucial for calcium absorption from the gut.

Conclusion: Making an Informed Choice

Nutrilite calcium tablets contain calcium carbonate, sustainably sourced calcified seaweed, magnesium, and vitamin D. Some versions add zinc, manganese, and vitamin K2. Amway emphasizes traceable, natural ingredients. Consult a healthcare professional before starting any supplement. For more on calcium and vitamin D for bone health, see the National Institutes of Health.

National Institutes of Health Fact Sheet on Calcium

Frequently Asked Questions

The main calcium sources in Amway's Nutrilite tablets are calcium carbonate and a plant-based calcified seaweed, often sourced from Iceland's fjords.

Magnesium is included because it is essential for regulating calcium transport and plays a vital role in bone health. It also helps activate vitamin D and supports the nervous and muscular systems.

Vitamin D is crucial for enhancing the absorption of calcium from the digestive tract into the bloodstream, making the calcium more available for strengthening bones.

Yes, many Nutrilite calcium formulas, such as Cal Mag D Plus, are suitable for vegetarians and are made without artificial colors, flavors, or preservatives.

According to Amway, the calcified seaweed is harvested from sustainable sources off the coast of Iceland, adhering to its rigorous NutriCert quality standards.

Some Nutrilite tablets are designed in an oval shape to be more streamlined and easier for consumers to swallow, addressing a common issue with large, round supplements.

Nutrilite uses a blend of calcium carbonate and calcified seaweed, while calcium citrate is a different mineral form. Calcium citrate is often gentler on the stomach and doesn't require as much stomach acid for absorption, but Nutrilite's inclusion of multiple synergistic nutrients is a key difference.