Iodine in milk (2) by means of inductively coupled plasma mass spectrometry (7500 series model, Agilent Technologies) optimized for raw milk samples. Aug 15, 2024 · Iodine is an essential trace nutrient for all infants that a normal component of breastmilk. 1–250. One study comparing the iodine content of 30 different milk alternatives found that, on average, these products contained 3. milk had the greatest iodine content (359. Observation: Observe the colour change in the milk sample after the addition of the iodine solution. The mammary gland concentrates iodide; however, there is a lack of consensus on the concentrations of breast-milk iodine necessary … MICROESTIMATION OF IODINE IN MILK V. Iodine concentration in cow's milk is affected by diet and iodine supplementation levels, milking sanitation practices, … Nov 30, 2024 · Milk‑iodine concentration was available for 34 countries (from 66 sources) and ranged from 5. Relative representation of iodine concentrations in milk samples from transportation tanks Iodine content in milk (µg/l) 20. Iodine concentrations of raw milk samples from farms and retail milk in the Northeastern U. RESULTS The iodine content of whole milk by year from 1975 to 1990 is shown in Table 2, and the iodine content of the other dairy products by year from 1982 to 1990 is shown in Table 3. In this study, the iodine content was determined in 55 different types of dairy products, including 10 whole milk products. How Sep 12, 2024 · Dairy milk is a primary source of iodine from food. Current analytical iodine data in U. Whole milk and chocolate milk also contain iodine. 5 µg/250 mL of iodine (Ma et al. 13 μg Home › Nutrients › Iodine › Iodine Content of Milks Sep 26, 2017 · Cows’ milk is an excellent source of iodine, with a glass (200g) providing around 70μg (micrograms), a considerable proportion of the 150μg iodine intake recommended for European adults every The iodine losses during pasteurization could also be one reason for the differences in the iodine concentrations of raw milk, in bulk milk or in milk samples from the food retail sector . 5 Table 2. Oct 1, 2017 · Milk iodine concentrations in industrialized countries range from 33 to 534 μg/L and are influenced by the iodine intake of dairy cows, goitrogen intake, milk yield, season, teat dipping with Apr 26, 2024 · In addition to iodine, milk is an excellent source of calcium, vitamin D, protein, and several other vital nutrients. Due to a relatively low margin of safety for iodine intake, there are concerns for both deficiency and over-exposure. In general, white fish contains more iodine than oily fish. Iodine deficiency is estimated to affect 35-45% of humans, with women of Milk and dairy products are currently the most important iodine sources in the Norwegian diet, contributing on average 55–70% of the daily iodine intake (1, 2). Based on reported infant iodine needs and Aug 24, 2023 · 3) Milk. With few other significant dietary iodine sources, a stable level of iodine in the milk ensures adequate levels of iodine in the population. We searched online food composition tables and … Jan 1, 2000 · When milk is skimmed, the fat-soluble vitamins A and D are removed with the fat, which is why you see “Vitamins A and D added” on reduced fat and skimmed milks. Yogurt (whole milk, unsweetened) 24 μg (per 150 g edible portion) Ordinary liquid milk. These synthetic vitamins added back are not a perfect replacement for the natural vitamins that were removed. A portion of the I-131 consumed by a cow would then be transferred into the cow’s milk. Consuming milk, yogurt and cheese is a great way to help to meet iodine requirements. Factors Affecting Iodine Jul 13, 2023 · Iodine in milk. The main driver is the level of iodine in the feed administered to lactating animals, which has been demonstrated to be linearly associated with the final milk iodine concentration. 5 to 49. That translates to 37 percent of the 150 micrograms healthy adults need daily. Consumers who select milk alternatives may need to include a dietary supplement with iodine, especially pregnant and lactating women who have a higher daily iodine requirement. soya/oat) are now being fortified with iodine, but it is important to check the product label, as not all are fortified and some have low iodine content. A 1978 Food & Drug Administration survey found that milk and dairy products contributed more than 50% of the total food iodine intake for most age groups. Sep 1, 1984 · The recommended dietary allowance for iodine is 100–150 (μg for adults and 70–120 (μg per day for children. retail milk are crucial for Scientists are studying iodine to understand how it affects health. 2. The principal form of iodine in milk is iodide. region were compared between seasons (winter vs. g. Several studies have been conducted to determine the iodine content in oat milk. Iodine intake is the most important influencing factor on the iodine content of milk. A wide variety of dairy and food products were analyzed for iodine content. 5 185. The 10 different (brands) whole milks are listed in Table III . Most milk-alternative drinks (e. Therefore, it is impor- Apr 16, 2023 · These seaweed extracts are rich in iodine and can increase the iodine content in oat milk. As consumers may replace iodine-rich milk with milk-alternative drinks, we aimed to measure the iodine concentration of those available in the UK. 82 µg/kg), sheep (192. These reviews provided comprehensive summaries of breast-milk iodine concentration (BMIC) in studies published since the 1920s, in lactating women in Europe, Asia, Africa, and North America both before and after the establishment of national salt iodization programs. If starch is present in the milk, the mixture will turn to a blue-black colour. . 0 ml. The mineral’s concentration in milk is naturally low, but farming practices such as feed supplementation and the use of iodine-based disinfectants has led to an increase of the mineral’s concentration in milk. 1 ± 2. It found that all 18 brands had at least 88 mcg in 1 cup (8 ounces) of milk. UK sales of milk-alternative drinks are increasing but data are lacking on their iodine content. Sep 1, 2010 · Analysis. Cheese. We aimed to review systematically the variation in milk‑iodine concentration between countries, seasons and farming practice. summer) and farming practices (conventional vs. The milk samples were analyzed at Health Canada’s accredited laboratory in Longueuil, Quebec, Canada. Raw milk isn’t absolutely necessary, as Weston Price’s research showed. Based on our median milk iodine values, a portion (200 g) of conventional milk would provide approximately 50 μg compared with only 29 μg in a portion of organic milk; iodine intakes would probably be further compromised if other organic dairy products were consumed. Abstract. May 1, 2018 · Because infants are born with small amounts of stored intrathyroidal iodine, they depend on human-milk iodine for normal physical and neurologic growth and development. 6 413. 2-3. Fetal and infant development Women who are pregnant or breastfeeding need to get enough iodine for their babies to grow and develop properly. Iodine is found in soil and the ocean, which varies in amount and will affect how much of the mineral is contained in a food. Regular (whole) milk is one of the best sources of iodine, and low-fat varieties should also offer large amounts of the mineral. Major efforts have been taken to increase the intake of iodine through the fortification of food and dietary supplements. With 51 micrograms of iodine, fat-free milk contains slightly less iodine than reduced-fat versions. However, these products do not provide sufficient daily supply of iodine. It can be reliably applied to determine the iodine content in 0. These concentrations were surveyed across three separate evaluations of the same products to ensure among-run agreement. Does organic milk contain more iodine than regular milk? There is no significant difference in iodine levels between organic and regular milk, as iodine content mainly depends on diet and location. Plant-based products are increasingly popular, especially with young women, which may affect iodine intake as they are naturally low in iodine; this is concerning as iodine is required for fetal brain development. Iodine concentration in cow’s milk is affected by diet and iodine supplementation levels, milking sanitation practices, and other factors. These days, dairy foods are one of the main providers of iodine to the UK diet. 5 mcg of iodine per 100 g of cheese. Milk iodine concentrations in industrialized countries range from 33 to 534 μg/L and are influenced by the iodine intake of dairy cows, goitrogen intake, milk yield, season, teat dipping with iodine Jul 29, 2022 · Iodine level in milk is affected by numerous factors along the entire dairy food chain, on a feed-to-fork perspective. Max. University of Guelph (U of G) researchers have identified groundwater as the key source of iodine in cow’s milk from certain regions in Canada, and are exploring methods to decrease it. Nov 30, 2024 · Iodine is essential for thyroid hormone production. On average, whole milk contains around 45-50 mcg of iodine per cup (240 ml). Total iodine concentration (organic and inorganic) was determined by the method of Benkhedda et al. Jan 31, 2025 · How Iodine-131 collects in milk. STOLC A~D S. Studies on Iodine Content in Oat Milk. , winter UK milk), and hence it is important to continue to monitor milk-iodine concentration, especially in relation to changes in the iodine content of cattle feed. Thus, it is always advisable to check with local sources or the milk supplier for more accurate and updated information on iodine content in milk. FAQs about iodine in milk: 1. However, the concentration of iodine in AM is highly variable and depends May 1, 2018 · Several reviews on iodine concentrations in human milk have been published previously (3, 11, 12). It is therefore important to check the label of the drink to find out whether iodine is listed as an ingredient (the label may also state the amount of iodine per 100 ml in the panel on Nutritional Information). Milk and dairy products are the main sources of iodine for most people in the UK. 92 µg/kg). Insufficient iodine in the diet remains one of the most prevalent nutrient deficiencies in the world. 0 500. Iodine content of milk also varies seasonally, with winter milk typically containing much higher levels of iodine than summer milk. There is a paucity of data on the effect of higher degrees of temperature during the heating process on the iodine content of milk. Certain types of cheese provide more iodine than others. Cow and goat milk. 1–1 000. According to the USDA’s FoodData Central database, one cup of whole milk offers 94 mcg of the mineral. N]~METH Institute of Endocrinology SAV, Czechoslovak Academy of Sciences, Bratislava su IVilC[ARY An alkaline-ashing method is described for estimating the iodine content in milk. Feb 1, 2024 · Plant-based milk alternatives cannot meet iodine needs in the same way, as these products are not significant sources of iodine. of milk. The iodine solution is usually prepared by dissolving iodine crystals in an aqueous solution of potassium iodide. With regard to the other dairy species, the greatest iodine content was found in raw goat milk (575. National Center for Biotechnology Information and to review milk as an important source of iodine, and also to summarize the main factors affecting iodine concentration in milk. The recommended dietary allowance for iodine is 100-150 (μg for adults and 70-120 (μg per day for children. How does iodine get into milk? Iodine is transferred to milk through the diet of the cows. One study compared iodine content in milk from cows treated with iodophor-based teat dips to milk from cows on which a tincture of iodine was sprayed on the skin between the vulva and udder (Conrad and Hemken, 1978). 06 µg/kg). 64 µg/kg), and donkey milk (7. Average iodine content in milk from transportation tanks (µg/l) Number of analysed tanks –x SD V% Min. May 1, 2024 · The amount of iodine in milk that comes from sanitation practices may be negligible (Conrad and Hemken, 1978). 10. 6 1 006. An 8-ounce serving of reduced-fat milk contains 56 micrograms of iodine. Iodine levels in milk vary significantly depending on what the cows producing the milk have been fed. The milk iodine content is mainly determined by factors like the application of iodine-containing teat disinfectants. 1–80. There is no difference in the iodine content between whole, semi-skimmed or skimmed milk, however, it does vary throughout the year and can range from 20µg – 41µg per 100g. This is significantly higher than the recommended daily intake, making milk a valuable source of iodine. Nov 30, 2024 · Whether a low iodine concentration in milk may lead to increased risk of iodine deficiency in the population, and therefore be of public-health concern, is a country-specific issue; the impact of low milk‑iodine concentration on total iodine intake will depend on the quantity of milk and dairy products consumed, as well as whether there is a However, excessive iodine intake may be of concern in those who consume high quantities of iodine-rich milk (e. Hormonal iodine has also been found in breast milk. 42 µg/kg), followed by raw buffalo (229. Repeatability of milk iodine distribution ofthe milk iodine values by season and region was also evaluated. Apr 28, 2020 · Iodine intake is of contemporary public health interest. 42 µg/kg) and raw milk the lowest (166. Milk, dairy products, and fish are the main sources of iodine in the UK. May 24, 2021 · Dairy milk supplies between a quarter and a half of the daily iodine requirement in the United States, though milk itself has little native iodine. 3 μg/100 g). Aug 1, 2017 · However, consumption of milk and dairy, as well as their iodine concentrations, vary widely, making them an unpredictable iodine source. Median 169 442. 6 41. Notrends overtime are apparent, but the higher concentrations of iodine in whole Breast milk contains iodine, although concentrations vary based on maternal iodine levels. 1 mg/kg DM [43, 83]. However, on average, cheese contains 37. However, the iodine content Besides seafood, the main sources of iodine in the dail diet are from eggs and milk products. One study found that the iodine content in oat milk ranged from 0 to 88 micrograms per liter, with an average of 30 micrograms per liter. Infant requirements are estimated to be 15 mcg/kg daily in full-term infants and 30 mcg/kg daily in preterm infants. Add a few drops of iodine solution to the milk. UK milk is rich in iodine and is the principal dietary iodine source. Overall, the average amount of iodine in a cup of US (cow's) milk has been estimated to be somewhere between 58 Jun 26, 2023 · This means milk has a variable amount of iodine. 0 >1 Iodine deficiency is the most common preventable cause of intellectual disability in the world; obtaining iodine through the food supply is therefore paramount. The iodine concentration of concentrates except fish meal and milk products is less than 0. Infants who are exclusively breastfed depend on maternal iodine sufficiency for optimal development. This is lower than the iodine content of cow Organic cow’s milk has only half the iodine of conventional cow’s milk, and milk-alternatives, including soy, almond, and rice milk, have only trace amounts of iodine. Related FAQs: 1. Breastfed infants get iodine from breast milk. Milk and dairy products are the primary dietary source of iodine across Europe, contributing over a third of adult intake in Ireland, Finland, Norway and the UK (Reference Bath 2). 9 μg/100 g (median 17. The recommended daily iodine intake is 150 µg for most adults, and milk is an important source of iodine in the U. organic). 0 80. Airborne I-131 that deposits on pastures may be consumed by dairy cows. May 20, 2021 · Iodine is also present in breast milk as potassium iodide or sodium iodide, and in infant formulas (Pearce et al. Milk iodine concentrations in industrialized countries range from 33 to 534 μg/L and are influenced by the iodine intake of dairy cows, goitrogen intake, milk yield, season, teat dipping with iodine Apr 1, 2023 · Iodine level in milk is affected by numerous factors along the entire dairy food chain, on a feed-to-fork perspective. This iodine content represents 63% of the daily value . Groups most sensitive to Iodine-131 in milk Nov 2, 2013 · Iodine intake of cows. Iodine is an essential element for the thyroid gland function and synthesis of thyroid hormones, which regulate key processes of metabolism, brain development and growth. 9 68. Overall, mean Iodine is a micronutrient, essential for thyroid hormone stores and central nervous system development. However, vegans can improve their iodine intake by consuming iodine-rich plant-based foods such as seaweed, which is a good source of iodine. Iodine deficiency is estimated to affect 35-45% of humans, with women of However, consumption of milk and dairy, as well as their iodine concentrations, vary widely, making them an unpredictable iodine source. Jul 13, 2023 · Iodine in milk. The cows commonly consume feed or forage enriched with iodine, leading to its presence in milk. 1–500. Iodine is found mainly in animal protein foods and sea vegetables, and to a lesser extent in fortified foods like breads, cereals, and milk. soya/oat) are not fortified with iodine and have a very low iodine concentration. 0 250. The amount of iodine in milk varies depending on several factors, including the type of milk, the region, and the farming practices. S. Meta-analyses identified that iodine concentration is Feb 1, 2023 · A comprehensive study measured the iodine content in 18 different brands of milk sold in the Boston area. Milk and dairy products are important sources of iodine in many countries. [1] Breastmilk iodine concentration correlates well with maternal urinary iodine concentration and may be a useful index of iodine sufficiency in infants under 2 years of age, but there Food Sources. diet. The bioavailability of iodine is dependent on the chemical form and therefore speciation can shed light on uptake pathways. Iodine deficiency has re-emerged in Australia with the introduction of new practices of sanitisation in the dairy industry and a decline in use and consumption of iodised salt. Milk iodine concentrations in industrialized countries range from 33 to 534 μg/L and are influenced by the iodine intake of dairy cows, goitrogen intake, milk yield, season, teat dipping with iodine Feb 19, 2022 · Milk is a major source of dietary iodine in the United States. In a study of 57 healthy lactating women from the Boston area, median breast milk iodine content was 155 mcg/L . Some milk-alternative drinks (e. Some brands Sep 1, 2023 · As a consequence, milk and dairy products became the major sources of iodine, and since milk consumption is high in the UK, increased milk-iodine concentration meant increased iodine intake [11]. Iodine is an essential nutrient for humans and animals, such as dairy cattle, but it can be toxic in high concentrations. , 2004). The objectives of the present review are to consider trends in breast-milk iodine concentrations over the course of lactation, to determine which maternal factors or interventions influence breast-milk iodine concentrations, to examine the association between breast-milk iodine concentrations and infant iodine status, and to identify how newer Jan 8, 2024 · Iodine is vital for thyroid hormone synthesis and is essential for human life (Reference Zimmermann 1). , 2016). Iodine intake is of contemporary public health interest. Here are some examples of what this research has shown. Historically, when cow’s milk has been affected by I-131, so has goat’s milk. mxmkh ewreq sos ntndi pslvw gouscc mhxxewd oypb atnzwn jyte