Does vitamin C prevent nitrosamines?
Michael Gray
Updated on April 04, 2026
Vitamin E and selenium have been found to minimize or prevent the reaction of nitrites/nitrates with amines and hence prevent or reduce the formation of carcinogenic nitrosamines. Vitamin C (ascorbic acid) is known to inhibit nitrosamine formation.
Does vitamin C counteract nitrates?
Vitamin C and certain other vitamins can reduce the conversion of nitrates and nitrites to nitrosamines.
How do you neutralize nitrosamines?
The role of calcium Calcium seems to suppress the formation of nitrosamines inside our GI tract. Giving people 1,000 mg of calcium as calcium carbonate, for instance, eliminated the increase in nitrosamines that they excreted when they were fed six ounces a day of cooked ham for four days.
Which vitamin prevents the formation of nitrosamine?
vitamin C
Today foods preserved with nitrites always have vitamin C, or a closely related compound erythorbic acid, added to prevent nitrosamine formation.
How do Nitrosamines form?
Nitrosamines are formed by reaction of secondary or tertiary amines with a nitrosating agent. In foods, the nitrosating agent is usually nitrous anhydride, formed from nitrite in acidic, aqueous solution. Ascorbic acid and sulfur dioxide are used to inhibit nitrosamine formation in foods.
What food has the most nitrates?
Foods With Added Nitrates
- Ham. Ham is often the highest source of dietary nitrates.
- Bacon. Bacon has up to 380 mcg of nitrates per 100 g of weight.
- Deli Meat. Deli meat is another major source of harmful nitrates.
- Hot Dogs. Hot dogs are one of the most processed sources of meat on the market.
What’s nitrite in urine?
A urinalysis, also called a urine test, can detect the presence of nitrites in the urine. Normal urine contains chemicals called nitrates. If bacteria enter the urinary tract, nitrates can turn into different, similarly named chemicals called nitrites. Nitrites in urine may be a sign of a urinary tract infection (UTI).
What do nitrosamines do?
Nitrosamines are produced by the reaction of nitrites and secondary amines. Nitrites are used as food preservatives, e.g. cured meats. Secondary amines arise by the degradation of proteins (food). Nitrite and nitrosamine intake are associated with risk of gastric cancer and oesophageal cancer.
Can vitamin C prevent the formation of nitrosamine?
Preventive action of vitamin C on nitrosamine formation N-Nitroso compounds are known to form endogenously in the human stomach from the precursors nitrite as well as secondary and tertiary amines. Ascorbic acid has been found to be an effective blocking agent for this process of formation of carcinogenic substances, both in vitro and in vivo.
Could nitrosamines form in human foods?
Since amines are common naturally occurring chemicals and are widespread in the food supply, could nitrosamines possibly form in human foods such as bacon, ham and hot dogs, traditionally preserved with nitrites? The answer was that they could.
Is nitnitrosamine a carcinogen?
Nitrosamines after all are known carcinogens, first identified as such in 1956 when dimethylnitrosamine was proposed as a novel solvent for the dry cleaning industry. Routine screening revealed that this compound caused liver cancer in rats so of course its use as a solvent was abandoned.
Can ascorbic acid block the formation of nitn-nitroso compounds in the stomach?
N-Nitroso compounds are known to form endogenously in the human stomach from the precursors nitrite as well as secondary and tertiary amines. Ascorbic acid has been found to be an effective blocking agent for this process of formation of carcinogenic substances, both in vitro and in vivo. The mechan …