Is Guangda a factory or a trading company?

Guangda is a factory. As a reliable calcium salt manufacturer in Yantai and a B2B calcium ingredients supplier in Shandong, we run raw material selection, synthesis, drying, milling, packing and QC in our own plant, so you get factory direct supply of food grade calcium without middlemen.

Are you a bulk food grade calcium citrate powder supplier?

Yes. We are a bulk food grade calcium citrate powder supplier producing calcium citrate tetrahydrate to GB 1903.14, USP and FCC, with lead ≤2 ppm and arsenic ≤3 ppm. It is widely used as calcium citrate powder for dietary supplements and fortified foods.

What is the food grade calcium citrate powder price?

The food grade calcium citrate powder price depends on grade (GB/USP/FCC), particle size, packaging, order quantity and the citric acid market. Send us your volume and destination port and we will quote FOB, CIF or DDP within 24 hours.

Do you provide free samples?

Yes. We send free samples (100-500 g) of any product together with the CoA and MSDS. Buyers usually pay the courier freight only, which can be credited against the first order.

Which certifications do you hold?

We are an ISO HACCP certified calcium factory in China holding FSSC 22000, ISO 22000, ISO 9001, ISO 14001, GMP, FDA registration, Kosher, Halal and the Chinese food additive production licence (SC).

Technical Guides

Calcium Ascorbate: The Non-Acidic Vitamin C Calcium Source

2026-10-05 18:59:39 · Guangda Technical Team

Calcium ascorbate is a buffered form of vitamin C in which ascorbic acid is neutralized with calcium, creating a non-acidic vitamin C calcium compound that is gentle on the stomach. Unlike regular ascorbic acid, it has a near-neutral pH, making it ideal for sensitive individuals.

Calcium Ascorbate: The Non-Acidic Vitami-buffered vitamin C配图1 — Calcium Ascorbate: The Non-Acidic Vitami · calcium ascorbate

What makes calcium ascorbate non-acidic?

In calcium ascorbate, the acidic hydrogen of ascorbic acid is replaced by calcium, forming a salt with a pH around 7. This means it does not contribute to stomach acidity, reducing the risk of heartburn or irritation. It still delivers the same antioxidant benefits as standard vitamin C.

Who should choose calcium ascorbate?

Anyone prone to acid reflux, ulcers, or sensitive digestion can benefit from this non-acidic vitamin C. It is also a convenient way to get both vitamin C and calcium, supporting immune function and bone health simultaneously. As a calcium manufacturer or calcium supplier, many companies now offer this buffered form to meet growing demand.

How does it compare to other vitamin C forms?

Calcium ascorbate is less acidic than ascorbic acid but provides similar bioavailability. It is often preferred over sodium ascorbate for those watching sodium intake. China calcium salts production has expanded, making calcium ascorbate widely available and affordable.

Is calcium ascorbate safe for daily use?

Yes, when taken as directed, it is safe for most people. However, excessive doses may cause digestive upset or elevated calcium levels. Always consult a healthcare provider before starting any new supplement.

常见问题

Is calcium ascorbate as effective as regular vitamin C?

Yes, calcium ascorbate provides the same vitamin C benefits as ascorbic acid. The only difference is that it is buffered with calcium, making it less acidic and gentler on the stomach.

Can I take calcium ascorbate if I have acid reflux?

Calcium ascorbate is often recommended for people with acid reflux because it is non-acidic. However, individual responses vary, so consult your doctor before use.

Does calcium ascorbate count toward my daily calcium intake?

Yes, calcium ascorbate contains calcium, which contributes to your daily calcium intake. The amount varies by product, so check the label for exact calcium content.