Jul 3, 2024 · Nitrates are molecules made of nitrogen and oxygen that are found naturally in air, soil, water, and some foods. Nitrates (drugs or medications) are prescription drugs used to treat and prevent angina (heart pain, chest pain). “They’re naturally present in the human body and in some foods, and nitrates are also added to some foods. In women who are assessed as being as having an intermediate or high risk category pregnancy, a midstream urine sample (MSU) should be taken and sent for culture and sensitivity at their booking appointment. Side effects include nausea, headache, and hot flashes. Nitrates are naturally present in the soil, water, plants and to a lesser extent in the air due to air pollution. Nitrate poisoning (toxicosis) in animals (especially ruminants) results from excess consumption of nitrates from plants or water or via ingestion of nitrate-containing fertilizers. Learn more about urinalysis and what causes nitrites in urine. Of them, 721 (79%) patients had a negative nitrite in their urine exam (NNU-group) and 153 (21%) had a positive Nov 6, 2025 · When you test positive for urine nitrites, it’s often a sign of bacterial infection. Dietary nitrates are naturally abundant in fruits and vegetables or can be introduced as additives, notably in processed and cured meats. If a woman is pregnant and has a urine culture result showing asymptomatic bacteriuria:. Simply put, nitrates and nitrites are naturally occurring chemical compounds that contain oxygen and nitrogen. Jun 19, 2025 · Do you worry about eating foods containing nitrates and nitrites, such as cured or processed meat like bacon, ham, and salami? Have you heard they may cause cancer? This guide will help you sort through the confusion and sift the facts from fears surrounding nitrates and nitrites. Most Jul 8, 2024 · You may have heard that nitrates and some foods are good for you, while others might be harmful. Obtaining nitrates from your vegetables should not be a problem due to the vitamin C that they contain because vitamin C prevents those nitrosamines from forming, but buying organic is the way to go. Feb 1, 2022 · Composed of just nitrogen and oxygen, nitrates are simple compounds that occur naturally in our bodies (see "Getting to know NO"). Jun 25, 2025 · Get a clear picture of your health by understanding your urine test results. Learn what high or low leukocytes, nitrates, and blood mean. Here we dive into the science to explain what nitrates are and how they can impact your health. Some of the foods high in nitrates are green leafy vegetables and root vegetables. May 31, 2024 · Pregnancy: Gestational diabetes is the most common cause of ketones in urine during pregnancy. Nitrate is a nitrogen-oxygen compound naturally found in soil, water, and some foods. Prolonged vomiting and/or diarrhea: if you vomit or have diarrhea for a long time, your body may run out of glucose for energy, leading to ketones in your urine. Jul 8, 2024 · You may have heard that nitrates and some foods are good for you, while others might be harmful. Most Aug 8, 2024 · Here's the difference between harmful and healthy nitrates in foods, plus their top benefits, according to registered dietitians Nitrates are produced by a number of species of nitrifying bacteria in the natural environment using ammonia or urea as a source of nitrogen and source of free energy. Apr 12, 2023 · Nitrates are added to fertilizers, which is one way that fruits and vegetables obtain nitrates. The nitrate ion (NO3–) is reduced to nitrite ion (NO2–), which is rapidly absorbed and leads to the formation of methemoglobin, which inhibits oxygen transport. Current scientific findings indicate that these compounds can have dual effects, both beneficial and harmful, on health. Sep 28, 2025 · Vegetables that contain nitrates are not harmful because plants counteract cancer-causing compounds. ” Nitrates are produced by a number of species of nitrifying bacteria in the natural environment using ammonia or urea as a source of nitrogen and source of free energy. The safety of use of nitrates during pregnancy and breastfeeding has not been established. Jan 16, 2024 · Dietitian Katie Greenhill shares which foods contain nitrates and nitrites and how they affect your health. Aug 8, 2024 · Here's the difference between harmful and healthy nitrates in foods, plus their top benefits, according to registered dietitians Sep 28, 2025 · Vegetables that contain nitrates are not harmful because plants counteract cancer-causing compounds. May 29, 2019 · Results Overall, 874 pregnant women with a positive urine culture were included. Nitrates are also found in both healthy and unhealthy foods — and in medications used to treat the squeezing chest discomfort known as angina. But all the other causes in this list can produce ketones during pregnancy, as well. Jul 3, 2024 · Nitrates are molecules made of nitrogen and oxygen that are found naturally in air, soil, water, and some foods.

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