Most standard blood tests check haemoglobin, which drops late in iron depletion. Ferritin, the storage marker, drops much earlier. You can have normal haemoglobin and very low ferritin, which causes fatigue, poor concentration and low mood. Ask your doctor to check ferritin specifically.
" } }, { "@type": "Question", "name": "Should I only take iron during my period?", "acceptedAnswer": { "@type": "Answer", "text": "No. Iron stores rebuild slowly and depletion is cumulative across cycles, so daily intake through the whole month is more effective than intermittent dosing. Do not increase the dose during your period either, because that also increases vitamin A intake, which accumulates.
" } }, { "@type": "Question", "name": "Is beef liver safe to take with the contraceptive pill?", "acceptedAnswer": { "@type": "Answer", "text": "There are no known interactions between beef liver and hormonal contraceptives. Some contraceptive methods reduce menstrual bleeding, which may reduce your iron loss. If your periods are lighter on contraception, your iron needs may be lower. Consult your doctor if you are unsure about your specific situation.
" } } ] } ] --- [](/) [Home](/) [Products](/products) [Ingredients](/ingredients)[Health Topics](/health-topics)[Guides](/guides)[Trust and Proof](/trust)[About](/about)[FAQs](/faqs) [Visit Chief Store](https://wearechief.com) 1. [Home](/) 3. [Organ Supplements](/organ-supplements) 5. Menstrual iron loss # Menstrual iron loss: why your cycle depletes iron and how to stay ahead of it Menstruation is the leading cause of iron depletion in premenopausal women. The average menstrual cycle loses 30 to 40 mL of blood, but heavy periods can lose significantly more, and every millilitre carries iron out of the body. If your dietary intake does not replace what your cycle removes, your ferritin drops over months until fatigue, poor concentration and low mood set in. Heme iron from beef liver absorbs at roughly 15 to 35 percent depending on the meal and iron status, making it one of the most efficient ways to keep ahead of that recurring loss. ## The science of menstrual iron loss ### Short answer Your menstrual cycle is a recurring iron drain. The iron lost in menstrual blood must be replaced through diet or supplementation. Heme iron from beef liver is one of the most efficient replacements because it absorbs at roughly 15 to 35 percent depending on the meal and iron status and is not blocked by the dietary inhibitors that reduce non-heme absorption. A consistent daily dose between periods maintains stores rather than waiting until fatigue signals depletion. ### How menstruation depletes iron Iron circulates in haemoglobin inside red blood cells. When you lose blood during menstruation, you lose the iron it carries. The average cycle loses around 30 to 40 mL of blood, containing roughly 15 to 20 mg of iron. Heavy menstrual bleeding is one of the most common causes of iron deficiency in women of reproductive age, and can deplete iron stores considerably faster ([Munro et al., 2023](https://doi.org/10.1016/j.ajog.2023.01.017)). Over months, if intake does not keep pace with loss, serum ferritin drops. Ferritin is the storage form of iron; when it falls below about 30 micrograms per litre, fatigue and cognitive symptoms typically appear, even if haemoglobin is still in the normal range. This is why many women are told their blood tests are "normal" but still feel exhausted. Haemoglobin, the number most doctors check first, drops late. Ferritin drops early. If your doctor has not checked your ferritin specifically, ask for it. The Australian recommended daily iron intake for women aged 19 to 50 is 18 mg, against 8 mg for men and for women after menopause ([NHMRC Nutrient Reference Values](https://www.eatforhealth.gov.au/nutrient-reference-values/nutrients/iron)), and that gap exists precisely because of this monthly loss. Most women do not reach 18 mg consistently through diet alone, particularly on diets low in red meat, so the shortfall compounds quietly over months and years. ### Which Chief product fits The Organic Beef Liver Capsules. Each serve delivers heme iron alongside B12 and folate, both of which support red blood cell formation and are commonly low in the same population. The whole-food matrix means the iron arrives with its cofactors, not in isolation. Freeze dried from organic, grass fed, grass finished Australian beef, with no fillers or synthetic additives. ### How to use it Take the label dose daily, consistently throughout the month, not just during your period. Iron stores rebuild slowly and the goal is to stay ahead of the recurring loss rather than playing catch-up. If you have heavy periods and suspect significant iron depletion, get your ferritin and full iron studies checked. Beef liver supports maintenance; for clinical depletion, your doctor may recommend a higher-dose intervention first. ## Not suited for Not suited if you have diagnosed iron deficiency anaemia requiring clinical-dose treatment. This is maintenance support, not a medical intervention. Not suited for people with haemochromatosis or iron overload. Beef liver contains fat-soluble vitamin A that accumulates, so not recommended in pregnancy without medical advice. If your heavy bleeding is undiagnosed, see a gynaecologist to investigate the cause before supplementing. Animal sourced and not suitable for vegans or vegetarians. Capsules use bovine gelatine. ## Chief Nutrition products for menstrual iron loss  ### Organic Beef Organs Multivitamin Capsules Beef Organs multivitamin capsules: a whole-food, freeze-dried grass-fed beef organ supplement in capsules. Contains liver, high in vitamin A. Not vegetarian or vegan. Check with your doctor if pregnant. 5.0 (24 reviews) 120 capsules AU$47.95 [View product](/products/organic-beef-offal-natures-multivitamin-120-capsules)  ### Organic Beef Liver Capsules Beef Liver capsules: a whole-food, freeze-dried grass-fed beef organ supplement in capsules. Contains liver, high in vitamin A. Not vegetarian or vegan. Check with your doctor if pregnant. 4.9 (141 reviews) 120 capsules AU$47.95 [View product](/products/organic-beef-liver-120-capsules)  ### Iron+C Capsules Iron+C capsules: a whole-food, freeze-dried grass-fed beef organ supplement in capsules. Contains liver, high in vitamin A. Not vegetarian or vegan. Check with your doctor if pregnant. 4.9 (22 reviews) 120 capsules AU$49.95 [View product](/products/iron-c)  ### Organic Beef Liver, Heart and Kidney Capsules Beef Liver, Heart and Kidney capsules: a whole-food, freeze-dried grass-fed beef organ supplement in capsules. Contains liver, high in vitamin A. Not vegetarian or vegan. Check with your doctor if pregnant. 4.9 (34 reviews) 120 capsules AU$47.95 [View product](/products/organic-beef-liver-heart-kidney-natures-immunity-boost-120-capsules)  ### Organic Beef Liver Powder Beef Liver Powder: a whole-food, freeze-dried grass-fed beef organ supplement in powder. Contains liver, high in vitamin A. Not vegetarian or vegan. Check with your doctor if pregnant. 4.9 (16 reviews) 200g AU$49.95 [View product](/products/organic-beef-liver-powder) ## Read next [ ### Beef organs: liver, heart and kidney explained What organ meats offer, the real nutrition, who they suit and how to choose one. ](/guides/beef-organs-liver-heart-kidney-explained) ## Related goals [ ### Iron deficiency and fatigue ](/organ-supplements/iron-deficiency-fatigue)[ ### PMS and mood support ](/organ-supplements/pms-mood-support) ## Frequently asked questions about menstrual iron loss ## Why am I tired even though my blood test was normal? ## Should I only take iron during my period? ## Is beef liver safe to take with the contraceptive pill? Chief Nutrition AI Knowledge Centre Real food. 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