Although iron deficiency is most common in female athletes (~15–35% athlete cohorts deficient), approximately 5–11% of male athlete cohorts also present with this issue. Deficiency Diseases/epidemiology; Deficiency Diseases/prevention & control; Female; Humans; Iron/deficiency* Male; Mass Screening; Risk Factors; Sex Distribution; Sports* United States/epidemiology; … Shortness of breath, dizziness, headaches, heart palpitations, or pale skin may also be prominent signs of iron deficiency. A combination of the following factors place athletes at risk of iron deficiency: Inadequate supply of dietary iron. For athletes, iron plays a critical role in exercise performance as outlined in our blog “Increase your iron absorption and rebound from anaemia” here The most common causes of iron deficiency include inadequate dietary iron intake, inflammation, poor iron absorption in the gut, parasites, iron loss through sweat, urination and faeces and blood loss through menstruation. Iron deficiency begins to affect tissues in stage 5, ... etc. In athletes, Iron Deficiency Anemia can lead to dramatic and measureable decrease in athletic performance, work capacity, reduced VO2max—and this effect is reversed when iron supplements are taken. According to this recent 2015 study, healthy male and female adult athletes who have ferritin values of less than 15 mcg/l means their iron stores are equivalent to empty, while values from 15-30 indicate low iron stores. Iron deficiency, which is so common in athletes and the general population, is one health and well-being issue you cannot fix at the gym. For female athletes, 2.2% indicated iron deficiency anemia and 30.9% indicated iron deficiency without anemia. Buy here » The transferrin receptor-ferritin index (sTfR/logFerr) was determined in 131 male and 121 female athletes in order to assess the frequency of iron deficiency (threshold value of that index taken as 1.8). Covered in this episode . Specifically, with regard to anemia, one small study found anemia in 87.5% of triathletes and 31.3% of runners (Coates, 2017). 2008 Oct;16(10):28. We performed a health assessment on anemia and serum ferritin levels, along with nutrient intake evaluation, for … Background. Pregnant women, infants, endurance athletes, and teenage girls are most at risk of iron deficiency (2, 6, 7, 12). Blood was drawn for determining morphological indices as well as sTfR, ferritin, iron, total iron binding capacity (TIBC), and haptoglobin. Increased demands for iron. Athletes trained for endurance often have low. If these symptoms apply to … IDA is far less common, seen in 0-2% of all athletes but has been reported as high as 15% among female athletes (Garza 1997). In contrast, increased iron stores in the body are a frequent finding in elite athletes who have used long-term iron supplementation. Most studies show an increased prevalence of iron deficiency anemia in athletes. Iron deficiency among athletes, in males and more often in females, is a commonly encountered condition for the sports medicine physician. New research at the Australian Institute of Sport is focusing on the best way to test for suboptimal iron status and … A 2007 study by P.S. Iron deficiency is fairly common among athletes, ranging from 15-35% among females and 3-11% among males (Sim 2019). The numbers are small, and the definitions can mistake the normal, physiologic, dilutional, false anemia of endurance athletes for iron deficiency anemia. The exact mechanism by which runners lose iron is a complicated one, and likely multifactorial. During the menstruation process, 0.5mg of iron is lost per day, and a loss of 60ml of blood per day are particularly susceptible to iron deficiency. Vegans and vegetarians are also at greater risk of iron deficiency due their lower/nil intake of animal-derived foods, as the iron found in animals (haem iron) is better absorbed by the body than that from plants (non-haem iron). While many athletes experience fatigue after tough workouts or events, the fatigue that results from iron deficiency can be debilitating, and often paired with other symptoms. of developing iron deficiency anaemia, a condition where there are not enough red blood cells. Athletes are at risk of developing iron deficiency due to a combination of factors including: Increased requirements (training stimulates production of red blood cells) Growth increases the demand for iron to produce new tissues and blood cells In this episode Kate shares her story, and takes us through the warning signs of iron deficiency anaemia in athletes, the most common causes, and the various treatment options available, particularly when treating elite athletes. As the name implies, iron deficiency anemia is due to insufficient iron. Anemia, meaning low hemoglobin, is most often due to low iron levels, but there are symptoms and blood labs that can show iron inadequacy before the deficiency level of anemia is reached. We are so confident in Active Iron that we are delighted to offer a 30-Day Money Back Guarantee when you buy a 30 Pack online with us. Adv Nurse Pract. It is important to consider other causes of fatigue, malaise and decreased exercise performance. The optimal ferritin level for athletes is widely debated: many studies use a ferritin level of <12 mcg/L to define iron deficiency, although benefits of iron supplementation have been shown using higher ferritin cut-offs (up to 60 mcg/l). It is estimated that, across all sports, 3 to 11 percent of male athletes and 15 to 35 percent of female athletes have some form of iron deficiency. There is contradictory evidence on the prevalence of iron deficiency anemia in athletes. One of iron’s major functions is to carry oxygen to the cells in your body, making iron essential for athletic performance. You may be surprised to learn that iron deficiency is a common problem for athletes and runners. Figure 1: Female It may be simply fatigue build-up from training and lifestyle stress, but it could also be a sign of iron deficiency. Figure 3 shows the parameters of 20 male competitors (mean age 21.2 years), who received 105mg ferrous sulphate daily during the period of training. Severe iron depletion resulting in overt iron-deficiency anemia clearly depresses endurance fitness, but it is not clear if milder degrees of iron deficiency (low serum ferritin with normal hemoglobin levels) impair physical capacity. Gastrointestinal blood loss is the most common cause of iron deficiency anemia in men, and the risk of developing a deficiency increases with age. Although symptoms can vary, some of the most common are weakness, shortness of breath, cold hands and feet, dizziness and headache. This is particularly concerning to endurance athletes. Athletes. 12 Prevalence studies indicate that approximately 15–35% of female athletes and 3–11% of male athletes are Stage 1 – Depleted iron stores. Iron deficiency is widely recognized as being the cause of anemia in athletes, although iron status in athletes of Kendo, a traditional Japanese martial art based on swordsmanship and practiced as an educational sport, has not been widely investigated.. Methods. Regular endurance sports increase blood plasma volume. 4. Wilson C(1). While the body’s iron requirements are typically met through the food we consume, athletes diagnosed with iron deficiency may be prescribed iron pills or liquid, or in more severe cases, prescription iron injections (e.g., iron sucrose or ferric carboxymaltose) if they do not respond well to oral iron. For obvious reasons, potentially a result of increased iron demand to account for menses. Although symptoms can vary, some of the most common are weakness, shortness of breath, cold hands and feet, dizziness and headache. Endurance athletes, particularly elites, are one such group. It may even be below. Iron deficiency can cause: anaemia (when there are too few red blood cells or haemoglobin in the blood is below normal because of too little iron) an impaired immune system. Iron deficiency in male elite athletes 38 Results The iron deficiency, found in 40 subjects (43%), was exclusively latent, since in no case iron-deficiency ana-emia was detected. Dietary iron recommendations to 1.7 times higher for athletes than non-athletes and 1.8 times higher for vegetarians than meat eaters. 1. Given the … Iron deficiency is common in athletes. Iron levels in the body can be low for reasons such as a diet deficient in iron, inadequate iron absorption in the stomach and intestines, or by loss of iron, which is a common cause in menstruating women. Iron-deficiency anemia is more common among female athletes than male athletes. Athletes with iron deficiency anemia will generally have more pronounced symptoms than those with iron deficiency alone. the normal range (i.e. Determination of serum transferrin receptor concentrations may identify true iron deficiency, which occurs particularly in young athletes. importance, since survey studies consistently indicate that a state of iron deficiency without anemia is evident in a quarter to a third of all female athletes. Iron is essential for the formation of haemoglobin, the main component of red blood cells. problems with motor and mental function in babies. Conclusions: One in 20 incoming female athletes was identified with anemia at the PPE. High physical demands and restrictive diets contribute to iron deficiency, and factors such as altitude training and exercise-induced hormonal influences may play a role as well. in Athletes. Where does iron come from? Adult athletes who participate in endurance sports should be screened for iron deficiency anemia and depletion of iron stores to reduce the deleterious effects on training and performance. Several groups of athletes are at higher risk of iron deficiency. The risk of iron deficiency is obviously also greater in female athletes due to the blood losses during menstruation (1). Headaches and dizziness. Patients with iron deficiency are much more common than patients with iron deficiency anemia and the … For obvious reasons, potentially a … Athletes with high sweat loss have higher iron loss. Adequate body stores of iron are necessary for optimal endurance exercise performance. Iron-deficiency anemia is more common among female athletes than male athletes. It is usually a result of one or more of the following: low iron intake, high demand for iron because of high training, and/or high iron loss (from foot strike hemolysis [blood cells breaking from running], menstruation, or injury). Not all fatigue however is iron deficiency. 1.1 Anaemia. Given the costs of testing, screening practices at each institution should be thoughtfully selected and … During adolescence, teens may experience rapid growth spurts, increasing their needs for iron and other nutrients, and if these needs are not met, they can develop a vitamin or mineral deficiency. Regular exercise can increase the likelihood of an iron deficiency. Iron deficiency is more common in women than it is in men — mainly due to the blood loss that occurs during menstruation. For female endurance athletes, the risk of anemia is even higher because monthly menstruation is stacked on top of grueling training regimens which also deplete them of iron. PMID: 19178011 [PubMed - indexed for MEDLINE] MeSH Terms. The median cost of iron testing exceeded US $20,000 annually for the institution. An iron deficiency is the No. Iron deficiency is a particularly prevalent issue among the athletic population, reported to affect ~ 15–35% of female and ~ 3–11% of male athletes . Athletes are at a greater risk of being iron deficient in comparison to the general population, especially female athletes, with up to ~35% having an iron deficiency versus ~5% in the general population. Athletes are at greater risk of this due to increased iron demands from training and competition, especially endurance athletes. poorer aerobic sports performance. During menstruation the female athlete bleeds and therefore, loses iron. Iron deficiency in athletes: women outpace men by a mile. Regarding iron, the various stages of deficiency for athletic populations are well established (Table 2). Shortness of breath is a symptom of iron deficiency, since low hemoglobin levels mean the body isn’t able to transport oxygen to muscles and tissues effectively. Gastrointestinal bleeding is common during strenuous exercise due to... Habitual use of anti-inflammatory drugs leads to iron loss. Anaemia is much more common in female athletes because of menstruation. The occurrence of iron-deficiency anaemia was lower, as would be expected as it is more serious, but was surprisingly higher in the male athletes (25% for triathletes and 6.3% for runners) than the females (20% for triathletes and 0% for runners). Importantly to athletes, both anemia and iron deficiency (alone or together) can cause decreased exercise performance and athletes, particularly runners, are at relatively high risk of of both. Wilson C(1). Occasionally, iron levels may be low enough to cause anemia, which is known as iron deficiency anemia (IDA). … Iron deficiency is the most common cause of anaemia (decrease in the number of red blood cells), affecting over one billion people in the world. But here is where the message of iron seems to get confused to the point that athletes now often wonder if taking iron can improve performance regardless of current iron status. There are many symptoms of inadequate and deficient iron levels. Low iron levels can have a large detrimental effect on performance due to reduced oxygen transport, reduced immune and neural function, and poor carbohydrate metabolism, and in turn energy production (2). In fact, endurance athletes have an increased risk of iron deficiency. Patients with iron deficiency are much more common than patients with iron deficiency anemia and the … In six cases iron-deficiency and, in two cases, iron-deficiency anaemic was observed. Iron deficiency and iron deficiency anemia are hot topics in many endurance athlete’s circles. For male athletes, 1.2% indicated iron deficiency anemia and 2.9% indicated iron deficiency without anemia. Causes and Risk Factors. Many other descriptive studies also demonstrated a significant decrease in red blood cell number and a decrease in hemoglobin and ferritin concentrations in athletes ( 20 ). Nevertheless, male athletes are not immune to iron depletion or iron deficiency anemia. Not infrequently, athletes presenting with fatigue may have undiagnosed asthma, underlying viral or another infection they were not aware about, or other conditions like an overactive or underactive thyroid, heart disease, high blood pressure, diabetes, kidney disease, depression or even cancer. Iron is a functional component of oxygen transport and energy production in humans and therefore is a critically important micronutrient for sport and exercise performance. Iron deficiency can be treated by adding iron-rich foods to the diet. Babies who are not getting adequate iron may be slow to gain weight. Iron deficiency without anemia is a condition that has been known for decades [7,20,21], but it has moved into focus only in recent years [1,2,8,10,17,22-24]. In up to 85% of endurance athletes, hematocrit and hemoglobin levels are in the lower normal range. Iron Deficiency in Athletes Thomas Rowland, MD Am J Lifestyle Med. Although iron deficiency is most common in female athletes (~15–35% athlete cohorts deficient), approximately 5–11% of male athlete cohorts also present with this issue. In order to treat an iron deficiency, a sports physician may administer an IV iron injection if oral and dietary therapy fail to increase iron status, or if iron repletion is required in a very short time frame. Iron deficiency anemia is a common type of anemia — a condition in which blood lacks adequate healthy red blood cells. Dietary intake alone is often insufficient to fulfill the iron demands of an athlete. Increased risk of iron loss: Iron is lost in sweat. Functional iron deficiency was found in 5 (3.9%) and 11 (25.5%) male and female athletes, respectively. Low hemoglobin, also called Anemia, is usually caused by iron deficiency. therapy. Based on the InsideTracker study on bio-markers, iron deficiency is a common problem for athletes, particularly in pre-menopausal women. It is usually a result of one or more of the following: low iron intake, high demand for iron because of high training, and/or high iron loss (from foot strike hemolysis [blood cells breaking from … Iron can be lost through gastrointestinal bleeding. Athletes and iron deficiency. Jun 29, 2005 12:00pm. Those training at high altitudes. However, some symptoms can be interpreted as iron inadequacy before you reach the anemia deficiency level. Iron deficiency is one of the most common deficits globally with a clear predominance in adolescence and in menstruating females [1]. Lots of symptoms show up in athletes with iron deficiency. Iron deficiency is a multifactorial disease that can stem from not consuming enough iron from food, blood loss, disrupted absorption in the gut or higher iron needs due to exercise, pregnancy or growth. Iron deficiency (ID) is the result of low iron stores. Athletes at all levels of training and ability are at risk of iron deficiency. Gastrointestinal blood loss is the most common cause of iron deficiency anemia in men, and the risk of developing a deficiency increases with age. In addition, it may be used if an athlete suffers from severe gastrointestinal issues from oral iron therapy, because it bypasses the gut (where iron is absorbed). 2012;6(4):319­327. Common causes of iron deficiency in adults include not getting enough iron in your diet, chronic blood loss, pregnancy and vigorous exercise. Low levels of iron can also affect athletes who undergo higher levels of endurance training because their body requires the delivery of more oxygen to working muscles, for longer periods of time. After three months neither iron-deficiency, nor iron- deficiency anaemia developed. Iron, specifically low levels of it, is often linked to feelings of exhaustion and poor recovery. premature delivery and low birth weight baby. Others at risk are: Adolescents. Females are at higher risk of iron deficiency due to loss in menstruation; however, men can be at risk as well. Iron deficiency anemia is found in 2% of male athletes and in 2.5% of female athletes because heavy athletic training increases iron need. One study found that 60% of elite female triathletes and 55.6% of elite female runners in their cohort had experienced at least one incidence of iron deficiency during the study’s six year period, while 25% of elite male triathletes and 6.3% of elite male runners experienced iron-deficiency anemia (Coates). Conclusions One in 20 incoming female athletes was identified with anemia at the PPE. The greater risk for triathletes than runners in both cases is notable and is perhaps related to their higher training volume. Iron deficiency in athletes: women outpace men by a mile. Iron is a trace mineral found in red blood cells that transports oxygen through the blood for use in cells. In athletes, Iron Deficiency Anemia can lead to dramatic and measureable decrease in athletic performance, work capacity, reduced VO2max—and this effect is reversed when iron supplements are taken. Some people become iron deficient if they are unable to absorb iron. It is usually not true anemia. If you zero in on female endurance athletes, that number skyrockets to 50 percent. Both male and female athletes have demonstrated reduced serum ferritin levels during training at altitudes between 7,000 and 8,000 ft. (6), and such deficiency has been shown to completely inhibit erythrocythemia, or increases in red blood cells (6). Iron deficiency, with or without anemia, can impair muscle function and limit work capacity. It is going to be one for anyone who has struggled with low iron status, athlete or not. How prevalent is iron deficiency in the athletic population? Although iron deficiency is most common in female athletes (~15–35% athlete cohorts deficient), approximately 5–11% of male athlete cohorts also present with this issue. (Rowland 1987) Dietary choices may explain most of this, but … NCAA Division I student athletes (21 men, 75 women; altitude: 1,625 m) were recruited from six athletic teams; 14 male and 12 female full-time students (non-varsity athletes) served as control subjects. Some types of athletes also often have a significant decrease in red blood cell number, hemoglobin , and ferritin levels [ 159 ]. Author information: (1)Air Force Academy, Colorado, USA. Hinton and L.M. Endurance athletes tend to have slightly low hemoglobin (Hb) levels by general population norms, because endurance exercise is a “plasma-builder.” How prevalent is iron deficiency in the athletic population?

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