Question 1

Why are transparent capsules an indicator?

Accepted Answer

A transparent shell makes the filling visible. Cloudiness or discolouration can be noticed before taking it.

Question 2

Is more omega-3 per serving automatically better?

Accepted Answer

More per serving reduces the number of servings, but says nothing about oxidation state, purity or packaging protection.

Question 3

What happens to omega-3 after opening?

Accepted Answer

Once opened, the oil is exposed to oxygen and light. Oxidation values then rise faster than before.

Question 4

Is a raw material certificate sufficient as proof of quality?

Accepted Answer

It evidences the tested raw material batch, not the filled finished product. Processing, filling and storage lie between the two.

Question 5

How do I calculate the price per 1,000 mg of omega-3?

Accepted Answer

Pack price divided by the omega-3 amount of the whole pack. This makes serving size and amount comparable.

Question 6

What is the difference between fish oil content and omega-3 content?

Accepted Answer

The fish oil content describes the amount of oil, the omega-3 content only the share of EPA and DHA within it.

Question 7

Is a lower TOTOX always better?

Accepted Answer

A low value indicates a lower oxidation state at the time of measurement. It says nothing about how the product develops after opening.

Question 8

What is the difference between rTG, TG and EE?

Accepted Answer

TG is the natural triglyceride form, EE the ethyl ester produced during concentration, and rTG the triglyceride form re-esterified from it.

Question 9

How are heavy metals, PCB and dioxins assessed?

Accepted Answer

They are analytically tested as contaminants and set against the applicable maximum levels. Missing disclosures do not mean that no contaminants are present.

Question 10

What is the anisidine value (AV)?

Accepted Answer

The anisidine value measures secondary oxidation products. It can still rise while the peroxide value is already declining.

Omega-3 Questions & Answers

Topic areas

Capsule

Basics

Shelf life & protection

Recognising quality

Price & value

Analytics & oxidation

Molecular forms

Popular questions

All questions

All topic areas in the catalogue