Caffeine intake drives down iron absorption so that could be a reason for oral hair loss from it.
Risk, III.
pubmed.ncbi.nlm.nih.gov
Results: Increased smoking duration (p < 0.001) and the presence of dandruff (p = 0.028) were significantly associated with increased frontal hair loss
Increased exercise duration (p = 0.002), consumption of more than four alcoholic drinks per week (p = 0.042), and increased money spent on hair loss products (p = 0.050) were all associated with increased temporal hair loss.
Daily hat use (p = 0.050), higher body mass index (p = 0.012), and higher testosterone levels (p = 0.040) were associated with decreased temporal hair loss.
Factors that were significantly associated with increased vertex hair loss included abstinence from alcohol consumption (p = 0.030), consumption of more than four alcoholic drinks per week (p = 0.004), increased smoking duration (p = 0.047), increased exercise duration (p = 0.050), and increased stress duration (p = 0.010). Lower body mass index, more children,
increased caffeine consumption, history of skin disease, and abstinence from alcohol
were significantly associated with increased hair thinning scores (p < 0.05).
Conclusion: This study offers substantial evidence that exogenous factors may have a clinically significant impact on hair loss.
Dual isotope studies were performed in iron replete human subjects to evaluate the effect of coffee on nonheme iron absorption. A cup of coffee reduced iron absorption from a hamburger meal by 39% as compared to a 64% decrease with tea, which is known to be a potent inhibitor of iron absorption...
pubmed.ncbi.nlm.nih.gov
There have been few studies that have evaluated the association between coffee intake and iron in Korean population. Data from the Korean National Health and Nutrition Examination Survey (IV and V; 2007–2012) was used to investigate the association ...
www.ncbi.nlm.nih.gov
Role of iron in hair loss is not clear yet. The purpose of this study was to evaluate the relationship between iron and hair loss. Retrospective chart review was conducted on patients with female pattern hair loss (FPHL) and male pattern hair loss ...
www.ncbi.nlm.nih.gov
Restore iron with lactoferrin and not ferrous sulfate. Lactoferrin scavenges excess iron too which it is easy to OD on. Notice in the below study ferrous sulfate increased serum IL-6 and lactoferrin did not.
Iron homeostasis in pregnancy compensates for increased iron requirements and in women of child-bearing age for iron loss in menses. Oral administration of ferrous sulfate, prescribed to cure iron deficiency (ID) and ID anemia (IDA), often fails to increase hematological parameters and causes...
pubmed.ncbi.nlm.nih.gov
Lactoferrin is a nutrient classically found in mammalian milk. It binds iron and is transferred via a variety of receptors into and between cells, serum, bil...
www.frontiersin.org
One of the most well-known characteristics of LF is that it is antibacterial (
19,
144–
148), antiviral (
99,
149–
151), antifungal (
152–
154), anti-inflammatory (
26), and anti-carcinogenic (
155). Its ability to of limit iron availability to microbes is one of its crucial amicrobial properties. Bacteria have, however, developed various ways to sequester iron (
156).
Figure 4 shows how bacteria acquire iron through receptor-mediated recognition of transferrin, hemopexin, hemoglobin, or hemoglobin-haptoglobin complexes and also LF (
30). As well as binding it directly from the environment, bacterial siderophores can obtain iron by removing it from transferrin, lactoferrin, or ferritin
Enteric coating allows LF release some distance from LF-degrading pepsin activities in the stomach, allowing it to remain intact, in the form capable of binding small intestinal LF receptors for uptake and eventual transfer into the systemic circulation (
182). In a rodent study,
the “absorption” of enteric-formulated LF was approximately 10-fold higher than that of regular LF introduced into the stomach of experimental animals (128). In view of these investigations, the authors of this paper regard enteric-coated LF as superior to regular LF supplements with respect to bioavailability and potential application for the prevention or therapy for coronaviruses such as the SARS-Cov-2 involved in COVID-19.
Bacteria are warring with us in our guts trying to take our iron.
Although LF has various means to counteract bacteria as part of its immune function (
131), it is also capable of being hijacked to benefit the activities of bacteria. Thus, bacteria can also exploit LF by removing its bound ferric iron (
19,
30). This process involves (1) synthesis of high-affinity ferric ion chelators by bacteria, (2) iron acquisition through LF or transferrin binding, mediated by bacterial-specific surface bacterial receptors, (3) or iron acquisition through bacterial reductases, which are able to reduce ferric to ferrous ions (
19,
144–
148).
Several Gram-negative pathogens including members of the genera
Neisseria and
Moraxella have evolved two-component systems that can extract iron from the host LF and transferrin (
157).
N. meningitidis is a principal cause of bacterial meningitis in children. While the majority of pathogenic bacteria employ siderophores to chelate and scavenge iron
It is fairly well established that male pattern baldness is a low grade systemic disease too which depletes iron even further AKA "anemia of inflammation"
Anemia of inflammation (AI, also called anemia of chronic disease) is a common, typically normocytic normochromic anemia that is caused by an underlying inflammatory disease. It is diagnosed when serum iron concentrations are low despite adequate ...
www.ncbi.nlm.nih.gov
Learn more about how the iron in your blood is associated with better aging and how to keep your levels within optimal ranges.
www.verywellhealth.com
Their research, published in a July 16 report in
Nature Communications, found that the genes involved in metabolizing iron in the blood are connected to longer, healthier lives.1
In addition, abnormally high or low levels of blood iron can lead to age-related health conditions, like liver disease, Parkinson’s disease, and a decreased ability to fight off infection.
"It appears that humans become less effective at incorporating iron into red blood cells as we get older,"
Kalea Wattles, ND, a naturopathic physician and clinical content coordinator at the Institute for Functional Medicine, tells Verywell.
Wattles says that, as a result, more iron is left behind to create something called free radicals.
These findings suggest that OSA may be a risk factor for male pattern baldness in men who have a family history of hair loss and that low serum TSA levels associated with hypoxia may be involved in a pathway linking OSA and male pattern baldness.
pubmed.ncbi.nlm.nih.gov
Conclusions: These findings suggest that OSA may be a risk factor for male pattern baldness in men who have a family history of hair loss and that low serum TSA(serum transferrin saturation) levels associated with hypoxia may be involved in a pathway linking OSA and male pattern baldness.
I will add about erythrocyte sedimentation rate and male pattern baldness later....