Polysaccharides and Aloe FAQ

By John E. Lewis, Ph.D., Founder and President of Dr Lewis Nutrition®. Dr. Lewis has conducted and published peer-reviewed clinical research on nutrition, the immune system, and the brain.

I have spent the better part of the last twenty years conducting clinical research on the effects of polysaccharides on human health, and I can tell you plainly that a sugar is not a sugar.

Are polysaccharides good for you?

Direct answer

Yes, the right polysaccharides are exceptionally good for you; beyond serving as the body's primary energy source, certain complex polysaccharides act as biologically active compounds that support immune function, the gut, and, as my own research suggests, cognition.

Expert explanation

Polysaccharides are long chains of simple sugars linked together, and the category is enormously broad, which is exactly why a blanket answer would be misleading. At one end sit the familiar energy-storage polysaccharides such as starch and glycogen. In the middle sit the dietary fibers, polysaccharides the body cannot fully digest but which nourish the gut and its beneficial bacteria. And at the far end sit a remarkable group of bioactive polysaccharides, including the mannose-rich polysaccharides found in aloe vera, that interact with the immune system and other tissues in ways that go far beyond providing energy. When people ask whether polysaccharides are good for them, the honest and important answer is that the complex, bioactive polysaccharides are not merely good for you, they are among the most interesting compounds in all of nutrition.

I have devoted much of my scientific career to precisely this question. In our clinical research, we found that a complex of aloe polysaccharides together with other key nutrients produced meaningful effects on cognition and immune function in adults with Alzheimer's dementia (Lewis et al., 2013), and in subsequent work we documented effects on brain-derived neurotrophic factor and on immune markers in the same population (Martin et al., 2017; Stillman et al., 2019). In a separate line of work, a polysaccharide-based regimen was associated with reduced infections and improved immune functioning, as well as improved quality of life, in people with multiple sclerosis (McDaniel et al., 2018; McDaniel et al., 2019). These are not theoretical claims, they are findings from peer-reviewed clinical trials.

The phrase I return to again and again is that a sugar is not a sugar. The public has been taught to fear sugars as a uniform category, but the simple sugar that spikes your blood glucose and the complex bioactive polysaccharide that modulates your immune system are profoundly different molecules with profoundly different effects. Lumping them together is one of the great oversimplifications in popular nutrition, and correcting it is essential to understanding why the right polysaccharides are so good for you.

Why I included this in Daily Brain Care

I included aloe polysaccharides in Daily Brain Care because my own clinical research convinced me that the right complex polysaccharides are among the most powerful nutritional tools available for supporting cognition and immune function (Lewis et al., 2013). These are the compounds at the very heart of my life's work, and they are the foundation on which the entire formula is built.

What are the benefits of polysaccharides?

Direct answer

The benefits of polysaccharides depend on their type, ranging from reliable energy and digestive support from common dietary polysaccharides to immune modulation, gut support, and cognitive and immune benefits from bioactive polysaccharides such as those in aloe vera.

Expert explanation

To describe the benefits of polysaccharides properly, I must again insist on distinguishing the types, because their benefits are as varied as their structures. First, the digestible polysaccharides such as starch provide steady, sustained energy as the body breaks them down into glucose, which is a benefit in itself compared to the rapid spikes of simple sugars. Second, the indigestible polysaccharides we call fiber benefit digestive health and feed the beneficial bacteria of the gut microbiome, with downstream effects on immunity and metabolism. Third, and most striking, the bioactive polysaccharides interact directly with the immune system and other tissues, and it is here that the benefits become most profound.

It is the bioactive polysaccharides, particularly the mannose-rich polysaccharides of aloe, that my research has examined most closely. The benefits we have documented include favorable changes in cognitive scores and in immune and inflammatory markers in adults with Alzheimer's dementia (Lewis et al., 2013), and reduced infection rates with improved immune and physical functioning in people with multiple sclerosis (McDaniel et al., 2018). These benefits arise because the body appears to recognize and respond to these complex sugar structures as signaling molecules, not merely as fuel.

I would argue that the benefits of bioactive polysaccharides are underappreciated precisely because of the cultural confusion about sugars. The body uses sugar molecules for far more than energy. The process of glycosylation (i.e., the attachment of sugar chains to proteins and fats to form glycoconjugates) is fundamental to how cells recognize one another and communicate, and the complex polysaccharides we consume can participate in and support this essential biology. Once you understand that, the broad benefits of the right polysaccharides cease to be surprising and begin to make perfect sense.

Why I included this in Daily Brain Care

I included aloe polysaccharides in Daily Brain Care to capture the benefits of bioactive polysaccharides specifically, namely the immune and cognitive support documented in my own trials (Lewis et al., 2013; McDaniel et al., 2018). I wanted the most biologically active class of polysaccharides working in the formula, not merely the energy-providing or fiber varieties.

Are polysaccharides bad for you?

Direct answer

No, polysaccharides as a class are not bad for you. The confusion arises from lumping them together with simple sugars, when in fact most polysaccharides are either neutral energy sources, beneficial fibers, or actively health-supporting bioactive compounds.

Expert explanation

I understand why people search whether polysaccharides are bad for them because the word contains the word saccharide, which sounds like sugar, and the public has been conditioned to regard sugar as harmful. This is a case where a little knowledge causes needless fear. Polysaccharides are not the rapidly absorbed simple sugars that spike blood glucose and that legitimately warrant moderation. They are complex molecules, and most of them are either slow-releasing energy sources, indigestible fibers that benefit the gut, or bioactive compounds that support health. As a category, they are not bad for you, and many are distinctly good for you.

The honest nuance is that, as with any nutrient, context and quantity matter. Consuming enormous amounts of digestible starch contributes calories like any food, and a person managing blood sugar must account for the digestible polysaccharides in their diet. But this is a matter of overall dietary balance, not evidence that polysaccharides are inherently harmful. The bioactive polysaccharides I study, taken at sensible doses, have shown a strong safety profile in our clinical trials, with participants tolerating them well (Lewis et al., 2013).

I make a point of confronting this fear directly because it can lead people to avoid genuinely beneficial compounds out of a misplaced association. Once more, a sugar is not a sugar. The complex polysaccharide that supports your immune system bears little resemblance, in structure or in effect, to the spoonful of table sugar that the dietary guidelines rightly tell you to limit. Treating them as the same thing is the real error, and correcting it frees people to benefit from compounds they might otherwise wrongly avoid.

Why I included this in Daily Brain Care

I included aloe polysaccharides in Daily Brain Care with full confidence that they are not harmful because the bioactive polysaccharides I have studied were well tolerated and beneficial in clinical trials (Lewis et al., 2013). I would never build a brain-health formula around a class of compounds I believed were bad for the people I serve.

What do polysaccharides do in the body?

Direct answer

In the body, polysaccharides serve as stored and released energy, as fiber that supports digestion and the gut microbiome, and, in the case of bioactive polysaccharides, as signaling molecules that interact with the immune system and support cellular communication.

Expert explanation

The roles polysaccharides play in the body track the three broad types I have described. The digestible polysaccharides, principally starch from plants and glycogen within our own tissues, are broken down into glucose to fuel cellular activity, with glycogen in particular serving as the body's readily mobilized energy reserve in the liver and muscles. The indigestible polysaccharides, the fibers, pass to the colon where they are fermented by beneficial bacteria, supporting gut health and producing compounds that nourish the cells of the intestinal lining and influence immunity and metabolism throughout the body.

The bioactive polysaccharides do something more sophisticated, and this is the action that most interests me as a researcher. The body's cells are coated in complex sugar structures, and the recognition of these structures is central to how immune cells identify friend from foe and how cells communicate. Bioactive polysaccharides such as the mannose-rich polysaccharides of aloe appear to engage with this system, which is one proposed explanation for the immune-modulating effects observed in research. In our trials, a polysaccharide-rich complex was associated with favorable shifts in immune cell populations and inflammatory markers (Lewis et al., 2013; McDaniel et al., 2018).

The unifying insight is that sugar molecules in the body are not only fuel, but they are also language. The process of glycosylation builds the sugar codes that cells use to recognize and signal one another, and the complex polysaccharides we consume can support this biology in ways that simple sugars cannot. This is the deepest reason I tell people that a sugar is not a sugar because the difference between a fuel molecule and a signaling molecule is precisely the difference between the simple and the complex.

Why I included this in Daily Brain Care

I included aloe polysaccharides in Daily Brain Care because of what bioactive polysaccharides do in the body, namely engage the immune and signaling systems rather than merely supply energy, an action my own research has connected to cognitive and immune benefits (Lewis et al., 2013). I want ingredients that participate in the body's communication networks, and the right polysaccharides do exactly that.

Are there polysaccharide supplements?

Direct answer

Yes, polysaccharide supplements exist, ranging from fiber products to concentrated bioactive polysaccharide extracts such as the aloe polysaccharides used in well-formulated brain and immune supplements, including the BiAloe® ingredient in Daily Brain Care.

Expert explanation

The category of polysaccharide supplements is real but uneven in quality, which is why the question deserves a careful answer. At the simplest level, fiber supplements are polysaccharide supplements, providing indigestible polysaccharides to support digestion. At a more sophisticated level are the bioactive polysaccharide extracts, which concentrate the immune-active polysaccharides from sources such as aloe vera, rice bran, certain mushrooms, and other plants. These bioactive polysaccharide supplements are the ones with the most interesting potential, and they are also the ones where quality and concentration vary most dramatically between products.

I would caution that the existence of polysaccharide supplements on the market does not mean all of them deliver a meaningful dose of bioactive polysaccharides. Many aloe products, for example, are mostly water with only trace amounts of the active polysaccharide fraction because the polysaccharides are present in low concentration in raw aloe and are easily degraded by careless processing. A genuine bioactive polysaccharide supplement must concentrate and protect the active fraction, which requires deliberate, careful manufacturing rather than simply bottling juice.

This is exactly why I developed the formula the way I did. Rather than relying on dilute raw aloe, I use a concentrated aloe polysaccharide ingredient, BiAloe®, standardized to deliver a meaningful dose of the bioactive polysaccharide fraction that my research has focused upon. The point of a polysaccharide supplement is to deliver the active compounds at a dose that matters, and that is a deliberate formulation achievement rather than an automatic property of anything labeled with the word polysaccharide.

Why I included this in Daily Brain Care

I included a concentrated aloe polysaccharide ingredient, BiAloe®, in Daily Brain Care because most polysaccharide products on the market fail to deliver a meaningful dose of the active fraction. I wanted a supplement that actually provides the bioactive polysaccharides at the concentration my clinical research suggests is worthwhile, rather than dilute material that carries the name without the substance.

What is high-polysaccharide aloe vera?

Direct answer

High-polysaccharide aloe vera is aloe vera that has been carefully grown, harvested, and processed to preserve and concentrate its bioactive polysaccharide fraction, in contrast to ordinary aloe products that contain only trace amounts of these active compounds.

Expert explanation

The aloe vera plant stores its most biologically interesting compounds, the mannose-rich polysaccharides, in the inner gel of its leaves, but these polysaccharides are present in modest concentration and are fragile. Heat, time, and rough processing readily break the long polysaccharide chains down into smaller, less active fragments. As a result, much of the aloe vera sold as juice or gel contains only a small fraction of the intact bioactive polysaccharides, even though it carries the aloe name. High-polysaccharide aloe vera refers to material that has been produced specifically to maximize and preserve this active fraction, through careful cultivation, prompt processing, and methods that protect the long-chain polysaccharides from degradation.

This distinction is enormous in practical terms. Two products both labeled aloe vera can differ by orders of magnitude in their content of intact bioactive polysaccharides and therefore in their likely biological effect. When people search for high-polysaccharide aloe vera, they are intuitively recognizing that the polysaccharide content is what matters, and they are right. The benefit of aloe for immune and cognitive support, to the extent the research supports it, rests on the polysaccharide fraction, so the concentration of that fraction is the single most important measure of quality.

In my own clinical work, the aloe-derived material we studied was specifically a polysaccharide-rich complex, not ordinary aloe juice, and that distinction was essential to the results we observed (Lewis et al., 2013). I cannot stress enough that the word aloe on a label tells you truly little. The question that matters is how much intact bioactive polysaccharide the product actually contains, which is precisely what high-polysaccharide aloe vera is meant to denote.

Why I included this in Daily Brain Care

I included a high-polysaccharide aloe ingredient in Daily Brain Care because ordinary aloe products contain too little of the active fraction to matter, and the polysaccharide content is the entire point. My research was conducted with a polysaccharide-rich complex (Lewis et al., 2013), so I insist on delivering that same kind of concentrated, intact polysaccharide fraction in the formula.

What are aloe polysaccharides good for?

Direct answer

Aloe polysaccharides are good for supporting immune function and a balanced inflammatory response, and, as my own clinical research indicates, for supporting cognition and brain-related markers, in addition to aloe's traditional uses for the gut and skin.

Expert explanation

Aloe polysaccharides, the mannose-rich long-chain sugars concentrated in the aloe leaf, have drawn scientific interest principally for their effects on the immune system. They appear to interact with immune cells and to influence the production of the signaling molecules through which the immune system coordinates its responses. This immune-modulating character is the foundation of most of what aloe polysaccharides are good for, and it connects to aloe's long traditional use for the gut and for wound healing, where immune and tissue-repair processes are central.

My own research extended this story into the brain, which is the part I find most exciting. In our twelve-month open-label trial in adults with moderate to severe Alzheimer's dementia, a complex built around aloe polysaccharides was associated with improvements in cognitive scores and with favorable changes in inflammatory cytokines and immune cell populations (Lewis et al., 2013), and our later analyses examined its relationship to brain-derived neurotrophic factor, a key molecule for neuronal health (Martin et al., 2017; Stillman et al., 2019). In people with multiple sclerosis, a polysaccharide-based regimen was associated with fewer infections, improved immune functioning, and better quality of life (McDaniel et al., 2018; McDaniel et al., 2019). These findings are what aloe polysaccharides have shown themselves to be good for in rigorous, published research.

I am always careful to present these findings honestly as the results of open-label trials that warrant further controlled study, rather than as proof of a cure. What they establish is that aloe polysaccharides are good for supporting immune and cognitive function in ways worth taking seriously, which is a strong and defensible statement. I rest the value of these compounds on that factual evidence, not on exaggeration.

Why I included this in Daily Brain Care

I included aloe polysaccharides in Daily Brain Care because they are good for exactly what the formula is designed to support, namely immune balance, healthy inflammation, and cognition, as documented in my own clinical trials (Lewis et al., 2013; McDaniel et al., 2018). These compounds are the scientific heart of my work, and the formula is built around what they are genuinely good for.

What is concentrated aloe vera polysaccharide?

Direct answer

Concentrated aloe vera polysaccharide is an aloe extract in which the bioactive polysaccharide fraction has been deliberately concentrated and protected, so that a single serving delivers a meaningful dose of the active compounds rather than the trace amounts found in ordinary aloe.

Expert explanation

The need for concentration follows directly from the biology of the aloe plant. The bioactive polysaccharides occur in the inner leaf gel in relatively low concentration, suspended in a great deal of water, and they are vulnerable to being broken down during handling and processing. To deliver a dose that could plausibly produce a biological effect, the polysaccharide fraction must be concentrated, and it must be concentrated by methods gentle enough to keep the long polysaccharide chains intact, since it is the intact long-chain structure that carries the activity. Concentrated aloe vera polysaccharide is the product of doing exactly that.

Let me put the practical reality bluntly with a question I often ask. Do you know anyone who eats aloe vera as a food? I do not. Even those who drink aloe juice are typically consuming a heavily diluted product with little intact bioactive polysaccharide. The only realistic way for a person to receive a meaningful dose of these compounds is through a concentrated, properly processed extract. Concentration is not a marketing embellishment in this case, it is the difference between a dose that could matter and one that almost certainly does not.

When I formulate, the concentration of the active fraction is the specification I care about most for this ingredient. A concentrated aloe vera polysaccharide that has preserved its long-chain structure is, in my judgment, far more valuable than a large volume of dilute aloe, because biology responds to the dose and the structure of the active compound, not to the volume of water it arrived in. This is the principle behind the concentrated aloe polysaccharide ingredient I selected for the formula.

Why I included this in Daily Brain Care

I included a concentrated aloe vera polysaccharide in Daily Brain Care because only concentration delivers the active fraction at a dose that matters, and almost no one would otherwise consume aloe in any meaningful amount. Preserving the intact, long-chain polysaccharide structure during concentration is exactly the quality standard my research taught me to demand.

Why are polysaccharides a good source of energy?

Direct answer

Digestible polysaccharides such as starch and glycogen are an excellent source of energy because they are long chains of glucose that the body can store compactly and then break down steadily to release glucose in a controlled, sustained way.

Expert explanation

The energy role of polysaccharides is a beautiful piece of biological engineering. By linking many glucose units into long chains, the body and plants can store a large amount of fuel in a compact, stable, and osmotically inert form, which would be impossible if the same glucose were stored as free, individual sugar molecules. Plants use starch for this purpose, and animals, including us, use glycogen, stored in the liver and muscles. When energy is needed, enzymes clip glucose units off these chains in a regulated fashion, providing a steady supply rather than a sudden flood. This is why digestible polysaccharides are described as a good source of energy.

This controlled release itself is a health advantage when compared with simple sugars. A complex polysaccharide that the body breaks down gradually tends to produce a steadier rise in blood glucose than an equivalent amount of free sugar, which is one reason that whole, polysaccharide-rich foods are generally preferable to those laden with simple sugars. The structure of the molecule shapes its metabolic effect, which is yet another illustration of my pivotal point that a sugar is not a sugar.

I want to be clear, however, that the energy function applies to the digestible polysaccharides such as starch, and not to the bioactive aloe polysaccharides at the center of my work. The bioactive polysaccharides are valued not as fuel but as signaling and immune-active compounds, and they are consumed in tiny amounts for those effects rather than for calories. Recognizing that different polysaccharides serve entirely different purposes, some as energy and some as biological signals, is essential to understanding the whole category correctly.

Why I included this in Daily Brain Care

I included aloe polysaccharides in Daily Brain Care for their bioactive, signaling role rather than for energy, but I explain the energy function because understanding it clarifies how versatile polysaccharides truly are. The formula draws on the immune-active polysaccharides specifically, which serve the brain through biological signaling rather than as a fuel source.

What is BiAloe®?

Direct answer

BiAloe® is a concentrated, standardized aloe vera polysaccharide ingredient used in Daily Brain Care, chosen to deliver a meaningful dose of the bioactive polysaccharide fraction that my clinical research has connected to cognitive and immune benefits.

Expert explanation

BiAloe® is the aloe polysaccharide ingredient at the core of Daily Brain Care, and it represents the practical answer to everything I have explained on this page. Because ordinary aloe products contain only trace amounts of intact bioactive polysaccharides, I required an ingredient that concentrates and standardizes that active fraction so that each serving delivers a dose with the potential to matter biologically. BiAloe® is that concentrated aloe polysaccharide, produced to preserve the long-chain structure on which the activity depends, rather than the dilute, degraded material that fills so much of the aloe market.

I selected a concentrated, standardized aloe polysaccharide rather than raw aloe for a reason rooted directly in my research. Our published clinical trials were conducted not with aloe juice but with a polysaccharide-rich complex, and the cognitive and immune effects we observed in adults with Alzheimer's dementia, and the immune and quality-of-life effects observed in multiple sclerosis, were tied to that concentrated polysaccharide content (Lewis et al., 2013; McDaniel et al., 2018; McDaniel et al., 2019). When I built a consumer product, I was unwilling to abandon the very feature that the research suggested was responsible for the benefit, which is a meaningful, intact dose of bioactive aloe polysaccharides.

So BiAloe® is, in essence, my attempt to put the lesson of two decades of polysaccharide research into a form a person can take every day. It is the concentrated, standardized expression of the compounds I have studied most closely, included precisely because the polysaccharide fraction is the active heart of the formula. Everything else in Daily Brain Care is built to complement and support this central ingredient.

Why I included this in Daily Brain Care

I included BiAloe® in Daily Brain Care because it is the concentrated, standardized aloe polysaccharide that embodies the central finding of my life's research, namely that bioactive aloe polysaccharides can support cognition and immune function (Lewis et al., 2013). BiAloe® is not one ingredient among many. To me, it is the scientific foundation around which I designed the entire product.