By Franziska Spritzler
Probiotics have received a lot of attention recently.
These living organisms have been credited with providing all kinds of health benefits related to gut function and beyond (1).
If you're looking to use them to boost your own health, it's important to make sure you take the right probiotic supplements to get the results you're after.
This article takes a detailed look at the effects of probiotics and provides recommendations for supplements that address specific health issues.
What Are Probiotics?
Your gut contains bacteria acquired at birth and onward in a process called colonization.
Many of these bacteria are considered beneficial or "friendly." Their functions include converting fiber into short-chain fatty acids, synthesizing certain vitamins and supporting your immune system (2).
Taking probiotics may help boost the numbers of these healthy bacteria.
The formal definition of probiotics is, "live microorganisms which when administered in adequate amounts confer a health beneﬁt on the host" (1).
Basically, probiotics are microorganisms that provide beneficial effects when you consume them in the right amounts.
Probiotics can be consumed in supplement form or in fermented foods like sauerkraut, kefir and yogurt.
Summary: Probiotics are health-promoting bacteria found in supplement form and some foods. Taking probiotics can help increase the number of beneficial bacteria that reside in your gut.
Certain Probiotics May Have Specific Benefits
Your gut microbiome or gut flora, consists of a wide variety of bacteria.
Its exact composition is unique to you.
Your colon contains billions of bacteria with types from more than 500 different species (4).
Probiotics that have been found to provide health benefits include various strains of Bifidobacterium, Lactobacillus and Saccharomyces. Many probiotic supplements contain a combination of different strains in the same supplement.
Research has shown that some strains seem to be more effective than others for treating certain conditions.
Therefore, you're more likely to get good results by taking probiotics that have been shown to achieve specific effects, such as controlling diarrhea.
In addition, it's important to consume probiotics in sufficient amounts.
Probiotics are typically measured in colony-forming units (CFU). Generally, higher doses have been found to produce the best results in most studies (5).
However, some probiotics may be effective at dosages of 1–2 billion CFU per day, while others may require at least 20 billion CFU to achieve the desired effects.
Taking extremely high doses hasn't been found to cause harm. One study gave participants up to 1.8 trillion CFU per day. However, it's expensive and doesn't appear to provide any additional benefits (5).
Importantly, scientists still don't know everything about probiotics. Although research has rapidly expanded within the past several years, there is much left to explore.
Summary: Different types of probiotic bacteria may provide health benefits. Taking a sufficient amount of the right probiotic is important for achieving the desired effects.
Probiotics That May Help Relieve Constipation
Constipation is characterized by bowel movements that are hard, difficult to pass and infrequent. Everyone experiences constipation once in a while, but in some people it becomes a chronic problem.
Chronic constipation is most common among the elderly and adults who are bedridden, although it can also occur in children.
In addition, some people with irritable bowel syndrome (IBS) experience persistent constipation as their main symptom. This is known as constipation-predominant IBS.
Conventional treatments include laxatives and stool softeners. However, in recent years, dietary changes and probiotic supplements have become increasingly popular alternative approaches (6).
In a study comparing probiotics and prebiotics in children with IBS, B. lactis was shown to provide significant constipation relief.
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By Abdullahi Alim
1. Learn From the Past<p>Young people tend to be comfortable with change. Their instant adoption of technology is an example.<a target="_blank"> However, they may lack an understanding of the more permanent realities – requiring patience and </a>stoicism.</p><p>This wisdom is typically in the hands of individuals who either work within systems or who have accumulated far more tenure. This was effectively echoed by 13-year old activist, Naomi Wadler who <a href="https://www.youtube.com/watch?v=17Aa6XLZe9A" target="_blank">said</a>, "We can educate our youth a lot better. We're not delving deeper into social justice movements from the past."</p><p>Youth movements that are informed by the success and pitfalls of prior efforts offer a more promising outcome. Take for example, the Black Lives Matter (BLM) movement, co-founded by a 32-year old Alicia Garza.<span></span></p><p>Unlike the civil rights movement of the 1960's, BLM lacks central governance. This means that opponents can't attack its leadership as a means to discredit the whole movement. In the 1960's, this is exactly what happened to the civil rights movement, when critics went after Martin Luther King, stalling the collective efforts of the movement.</p><p>In fact, King spent his final year <a href="https://eu.usatoday.com/story/opinion/2018/04/04/martin-luther-king-jr-50-years-assassination-donald-trump-disapproval-column/482242002/" target="_blank">mired in public disapproval</a> with over 75% of Americans considering him "irrelevant" including 60% of African Americans.</p><p>By studying the legacy of previous efforts, BLM has managed to rally approximately <a href="https://www.washingtonpost.com/politics/big-majorities-support-protests-over-floyd-killing-and-say-police-need-to-change-poll-finds/2020/06/08/6742d52c-a9b9-11ea-9063-e69bd6520940_story.html" target="_blank">75% of the American public</a>; a feat that will undeniably ensure the longevity of its cause.</p><p>For the youth climate movement, it too must reconcile the long record of activism that predates its tenure. It ought to model itself as an intergenerational movement by giving greater credence to the activists, environmental scientists and <a href="https://www.weforum.org/agenda/2020/05/juan-manuel-santos-colombia-indigenous-peoples-coronavirus-pandemic-climate-change-environment-nature/" target="_blank">indigenous elders</a> that have fought for climate justice before its inception and ultimately signal the nuance and maturity that would activate allies within systems of power.</p>
2. Become Part of Systems Change<p>From the college campus to the coworking space, you would be hard pressed to avoid the sight of a social impact competition that invites young people to resolve some of the world's most intractable problems.<br></p><p>Unsurprisingly, this often leads to problematic and incomplete solutions. Take, for example, <a href="https://ssir.org/articles/entry/tackling_heropreneurship" target="_blank">an app for African farmers</a> developed by students who have neither farmed nor been to Africa.<br></p><p>Fortunately, there is a growing shift towards empowering young people to better diagnose the systems that uphold inequality. For example, Oxford University hosts the annual <a href="http://www.oxfordglobalchallenge.com/" target="_blank">Map the System</a> competition to celebrate some of the most promising youth-led mappings and the World Economic Forum's <a href="https://www.globalshapers.org/story" target="_blank">Global Shapers Community</a> convenes more than 7,000 young people under the age of 30 to address local, regional and global challenges.</p><p>To achieve systemic change, young changemakers must first unpack systems into <a href="https://wtf.tw/ref/meadows.pdf" target="_blank">three components</a>; elements, interconnections and functions:</p><ul><li>Elements are essentially the key stakeholders in the system. This can include individuals, land or objects.</li><li>Interconnections are the laws and social norms that bind the elements together.</li><li>Functions are the end-goals.</li></ul><p>Take for example, the persistence of sexual harassment in the workplace as a systems issue. The elements in the system would include the victim, perpetrator and other intermediary bodies including line managers and human resource teams. The interconnections could include forced arbitration laws that prohibit employees from seeking public courts and a managerial culture that protects high performing perpetrators and pressures victims into silence. In which case, the ultimate functions (or rather dysfunctions) of the system discourage victims from pursuing action and enable perpetrators and enablers to enjoy the benefits of career progression without due trial.</p><p>Systemic change is about redesigning the interconnections (the cultural norms and laws). In the example above, it involves challenging the use of private arbitrary courts and uprooting a toxic work culture. Reclaiming this intuition opens a pandora's box that ultimately allows for any given system to operate more inclusively.<br></p><p>Today, young changemakers can rely on online resources like <a href="http://systems-ledleadership.com/" target="_blank">Systems-Led-Leadership</a> to analyze any given system of inequality and then direct their unique skills and knowledge towards the most effective intervention.</p>
3. Avoid Heropreneurship<p>Daniela Papi-Thornton first coined the term <a href="http://tacklingheropreneurship.com/" target="_blank">heropreneurship</a> to describe a growing trend that credits social change to the "founder" of an organization or movement exclusively.</p><p>This culture has inspired an entire generation of young change-makers who are swayed by the allure of the "heroic" founder and whose behaviors are validated through youth awards, grants and speaking circuits that glorify a role in the limelight. This pervasive culture undercuts the entire spectrum of actors that really creates social change.</p><p>Social change does not necessarily warrant the creation of a new organization or movement. Change-makers should consider the root causes that perpetuate and uphold inequalities and then map the existing players and solutions. This process might point to scaling up the work of an existing organization or helping a local candidate run for office.<br><br>For young people who wish to create social change, their efforts – while extremely important – may go unnoticed. This is an expectation that needs to be managed.<br></p>
4. Know Your Place<p>In 2016, a political action committee entitled <a href="http://canyounot.org/" target="_blank">Can You Not</a> emerged with the aim of discouraging white men from running for office in minority districts.</p><p>Despite the comical graphics, the campaign highlights an important question for young changemakers, particularly if they advocate for issues that they have not lived: in the quest for social change, can the actions of change-makers unwittingly perpetuate injustices, even as they seek to end them?<br></p><p>In the example above, could the notion of a white man effectively assuming the role of a translator between minority communities and government only reinforce their structural underrepresentation in political decision-making? Could the desire to assume office without lived experience also signal little faith in the leadership of the very communities being served?<br></p><p>A more effective approach to social change may be to encourage such actors to take stock of the unintended consequences of misrepresentation. In doing so, they may come to appreciate the importance of "stepping back" to allow others to "step forward." More concretely, this could result in building trusted relationships with the community and eventually empowering more local voices to consider public leadership.<br></p><p>For young changemakers, it is pivotal that they assess their own standing in a given system and avoid perpetuating the very inequalities they wish to tackle.</p>
Strategic Intelligence: Youth Perspectives. World Economic Forum
A More Targeted, Effective Kind of Activism<p>Social media has played its critical part in providing young people with a vehicle to advocate for social reform.</p><p>Whether it's <a href="https://www.theguardian.com/environment/2019/sep/23/greta-thunberg-speech-un-2019-address" target="_blank">Greta Thunberg's speech</a> during the United Nations General Assembly in 2019 or <a href="https://variety.com/2018/politics/features/emma-gonzalez-parkland-interview-1202972485/" target="_blank">Emma Gonzalez</a> rallying crowds for more stringent gun control. younger voices are swaying public opinion and pressuring political systems to operate more inclusively.<br></p><p>The impact of these extraordinary young people is inspiring, but arguably they struggle to provide a course of action for the average young person who is motivated to pursue social change. The inconvenient truth is that social reform is difficult and even more so for a young person who wrestles with challenges related to experience and credibility.<br></p><p>To be more effective, young changemakers must forge greater bonds with late-stage activists as well as potential allies within systems of power. They must also understand the systems that uphold equality and pinpoint the intervention that would most likely inspire systemic change.<br></p><p>Finally, it is pivotal that they invest in a support system and seek to dissolve <a href="https://www.weforum.org/agenda/2020/06/this-is-how-wellbeing-drives-social-change-and-why-cultural-leaders-need-to-talk-about-it" target="_blank">personal anxieties</a> that may compromise their change-making potential.</p><p>It's time for youth activism to grow up.</p>
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By Agustín del Castillo
The Nevado de Colima volcano stands 4,260 meters (13,976 feet) above sea level. Agustín del Castillo<p>According to biologist José Villa Castillo, the director of Nevado de Colima National Park and Nevado de Colima Cloud Forest State Park, it is imperative to stop the commercialization of the tree's timber and to create policies that conserve the forests in which it lives. Villa Castillo also supported the inclusion of the tree on the endangered species list.</p><p>Villa Castillo acknowledged the enormous challenge of conserving this tree, and he said the pressure to exploit its timber without sustainable management is far from the only problem. The expansion of the nearby avocado industry also threatens its survival.</p><p>When allowed to grow, the Colima fir tree can become monumental: It can reach 60 meters (196 feet) in height and 2 m (6.5 ft) in diameter. To protect this giant, specialists and communities often promote ecotourism and conservation projects inside the national and state parks that surround the Nevado de Colima volcano.</p>
Fires That Clear Land for Avocado Crops<p>In 2012, a group of researchers from the University of Guadalajara proposed to the Secretariat of Environment and Natural Resources (SEMARNAT) the recognition of the <em>A. colimensis</em> as a unique species to differentiate it from the sacred fir (<em>A. religiosa</em>), which is the dominant fir tree in the Trans-Mexican Volcanic Belt, a collection of volcanoes in central Mexico.</p><p>The Colima fir tree "has extremely low genetic diversity; it has the lowest known genetic diversity among all the species in the Abies genus in Mesoamerica and one of the lowest among all the species of trees on the planet," according to the authors of the proposal to recognize the tree as an endangered species. The area it occupies "is very limited": just 15,002 hectares (37,071 acres), or 0.007% of the territory of Mexico.</p><p>The Nevado de Colima volcano, which stands 4,260 meters (13,976 feet) above sea level, is one of only eight peaks that exceed 4,000 m (13,123 ft) in Mexico. It is only 40 kilometers (25 miles) from the Pacific Ocean and is considered an "evolutionary island" because the ecosystems in its high-altitude areas drive unique adaptations in species and are cut off from other ecosystems by hundreds of kilometers. The Colima fir tree is an example of the area's biological differentiation, according to Libertad Arredondo, a researcher and expert on the ecology of high mountains.</p>
The fir forests are mainly located in the middle of slopes or in ravines. Agustín del Castillo<p>Even though the tree has remained on that "evolutionary island," its situation has become increasingly complicated by the impact of deforestation, which was propelled by the issuance of permits for forest exploitation. Fires, started to convert the land to agriculture or other uses, also present a threat to the ecosystem, according to the experts who suggested the tree should be considered endangered.</p><p>The researchers said the tree's future prospects are further complicated by its slow growth rate, its high degree of genetic erosion, the effects of climate change, and the movement of clouds to higher altitudes. The position of clouds is crucial because they act as an essential source of moisture for fir trees.</p><p>Villa Castillo, an expert in pine genetics and reproduction, said the Colima fir tree has never been successfully reproduced in nurseries, which would likely make it impossible to conduct reforestation efforts to help repopulate the species.</p><p>The forests that contain the Colima fir tree are in cold, humid climates, with very little light reaching the understory, and they're mainly located in the middle of slopes or in ravines. The species thrives when surrounded by oak trees, coniferous trees and other types of vegetation common in mountainous cloud forests. The tree also requires a primary habitat with little disturbance from humans.</p><p>According to Villa Castillo, fire kills most Colima fir tree seedlings, as it kills seedlings of other species in the <em>Abies</em> genus. In recent years, more fires have been started in the forest to clear the way for avocado trees.</p>
Communities Pitch in to Save Their Trees<p>Unlike the communities that have been overtaken by the avocado industry, Huescalapa has largely managed to resist its arrival. The community of shared land, which spans more than 1,200 hectares (3,000 acres), is home to pine and fir trees within its shady temperate forests.</p><p>The residents of Huescalapa have also set aside the proposals they've received from the forestry industry, which has expressed interest in buying their trees.</p><p>According to Gerardo Bernabé Aguayo, logging activity in this area of Jalisco "has been very negative because the industry has managed delicate areas — with very limited species — poorly, so we are supporting and launching projects with the communities." Bernabé Aguayo is the president of the board of trustees of Nevado de Colima and Adjacent Basins, a civil association created about 20 years ago after being promoted by the government of the state of Jalisco. To support the conservation of the national and state parks, the board has financing from the regional private sector.</p><p>The board manages about 6 million pesos ($268,000) contributed by the federal government in 2020. With resources from the private sector, it has been able to access an additional 1.5 million pesos ($67,000).</p>
An area of fir trees that has been destroyed by logging. Agustín del Castillo<p>Rodrigo Cantera Hernández, the president of the El Alcázar Ecotourism Center, said that in Huescalapa, the caciques removed timber from the fir forests, "but they did not report any money to the other community members, so we fought to eject them and were able to do so a couple of years ago."</p><p>In Huescalapa, three main conflicts over timber have taken place in the past 20 years. First, in 1999, a group of community members sold part of the forest to a forestry industry from Ciudad Guzmán. A movement led by citizens put an end to the logging five months later.</p><p>Next, in 2012, environmental authorities granted permission for forest exploitation in these areas, so fir trees continued to be cut down. An opinion by the <a href="https://www.ideaac.org.mx/" target="_blank">Institute of Environmental Law</a>, a civil society organization, cited scientific evidence that demonstrated the uniqueness of mountain fir trees and forced SEMARNAT to withdraw these permissions.</p>
By Jeanette Cwienk
Going Green, or Just Greenwashing?<p>"Fashion brands are capitalizing on the fact that consumers are interested in buying fairly and ecologically produced items," said Katrin Wenz, an expert in agriculture at Friends of the Earth Germany (BUND). "Organic cotton is certainly a step in the right direction, because neither <a href="https://www.dw.com/en/patents-on-plants-is-the-sellout-of-genes-a-threat-to-farmers-and-global-food-security/a-49906072" target="_blank">genetic modification</a> nor synthetic pesticides can be used in its production. But these own-brand sustainability labels rarely tell us anything about what happens later on in the production chain."</p><p>Viola Wohlgemuth, a textiles expert at Greenpeace, says companies create their sustainability labels and criteria themselves. "Sustainability is not a protected or specific term, which leaves the door wide open for so-called greenwashing," she told DW.</p>
Independent Certifications Trustworthier<p>Both experts emphasize that independent environmental certifications offer a better indicator of a product's eco credentials, including labor conditions for workers involved in production. Examples include the Global Organic Textile Standard label (GOTS) and the IVN Best certification, which is awarded by the International Association of Natural Textile Industry (IVN).</p><p>Heike Hess, head of IVN's Berlin branch, says using organic cotton alone "is not enough to make fashion really sustainable," and that producing clothes involves a more involved production chain. After being grown in the fields, cotton fibers have to be separated from their seeds, spun, dyed, printed and sewn to create finished items of clothing.</p><p>"Ecological and social standards are important at every stage of production," Hess said. "That includes minimizing the use of harmful chemicals, managing water usage and waste, limiting CO2 emissions and ensuring human rights, fair wages, protections for workers and much more. Only then can fashion really be called sustainable."</p><p>And that comes at a price. <a href="https://www.dw.com/en/heres-why-your-next-t-shirt-should-be-made-of-organic-cotton/a-39083921" target="_blank">Organic cotton</a> summer dresses certified with the GOTS label usually cost somewhere between €60-100 (about $67-113). </p>
Water Polluted and Wasted<p>Textile production often uses harmful chemicals, especially during the wet processing stage when threads are formed, dyed and woven, says Wohlgemuth. According to the UN Environment Program, around 20% of global wastewater is generated during textile dyeing and processing. Communities and ecosystems in <a href="https://www.dw.com/en/bangladeshs-textile-industry-works-towards-becoming-more-eco-friendly/a-50983898" target="_blank">textile producing countries across Asia</a> are worst affected.</p><p>Since launching its <a href="https://www.greenpeace.org/international/act/detox/" target="_blank">'Detox My Fashion'</a> campaign in 2011, Greenpeace has secured commitments from some 80 global companies in the fashion industry to eliminate hazardous chemicals by the end of this year.</p><p>But that alone doesn't imply sustainability. Growing cotton also requires a huge amount of water and vast areas of land, says Sabine Ferenschild from the Südwind Institute for Economics and Ecumenism in Bonn.</p><p>"Organic cotton is only sustainable when grown in rainy regions such as India, and planted in combination with food crops rather than in competition with them," she said. "But we have seen that cotton farming is increasingly being shifted to desert regions. That can never be sustainable."</p>
Eco Collections Remain a Market Niche<p>Ferenschild is critical of major fashion brands' attempts to go green with their own criteria and labeling for certain products, while the majority of what they're selling is still produced conventionally.</p><p>Germany is pursuing a new approach to green certification with its government-backed <a href="https://www.bmz.de/en/issues/textilwirtschaft/gruener_knopf/index.html" target="_blank">'Green Button' label</a>. A company can only use the label if all its products comply with high environmental and labor standards. These standards are not as strict as those demanded by organic certifiers, but experts say the 'Green Button' label is a step in the right direction, as it prevents producers offloading responsibility to subcontractors in the production chain.</p>
An 'Eco' Dress for €20 ($22.60): Too Good to Be True?<p>According to the Bremen Cotton Exchange, organic cotton costs between 10 and 50% more than conventional cotton. Premium fibers boost prices the most; the raw material is not necessarily the most important factor in terms of cost.</p><p>Global fashion brands like H&M are able to keep their prices down, even for the products in their "sustainable" ranges, due to the huge volume of items they produce, textiles expert Ferenschild told DW.</p><p>H&M uses its own "CONSCIOUS" label for products which contain "at least 50 percent sustainable materials, such as organic cotton and recycled polyester." It is not clear to consumers what percentage of organic cotton is used in the items labeled as such. In response to DW's request for clarification, H&M wrote: "Across our entire range, H&M uses 16 percent organic cotton according to our most recent figures."</p><p>According to the Bremen Cotton Exchange, just 0.7 percent of the global cotton harvest in the 2017/18 season was organic.</p><p><strong>The Real Problem Is One of Quantity</strong></p><p>Even if the big fashion brands wanted to move further towards truly sustainable production, current consumption habits would make that almost impossible. The real problem is that far too many clothes are being produced. According to a 2015 Greenpeace study, there are more than five billion items of clothing in German wardrobes alone. </p>
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