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Weight loss teas claim to suppress appetite, increase fat burning and boost metabolism.
But do they work?
This article takes a sales-free look at the scientific evidence.
What Is Weight Loss Tea?
Weight loss teas are usually a blend of tea and herbs, depending on the brand.
They're said to help with weight loss by enhancing fat burning, increasing metabolism and suppressing appetite.
Many are also marketed as "detox teas" and "fit teas," with claims they increase energy and cleanse your body of toxins.
Most of these teas come with a recommended exercise and eating plan to be followed in addition to drinking the tea every day or two.
They are generally expensive and heavily marketed on social media.
Summary: Weight loss teas are a blend of tea and herbs that are claimed to enhance weight loss through several different mechanisms. Detox teas and fit teas are similar and all come at a premium price.
Diuretics and Laxatives in Weight Loss Tea
Many weight loss teas contain laxatives, caffeine or diuretics.
These ingredients can lead to short-term loss of water weight, giving you the illusion of having lost weight or feeling slimmer.
As the name suggests, a drop in water weight is a drop in the amount of water stored in the body. This type of weight loss is not from a reduction of fat stores and is not a sustainable method of weight loss.
As soon as you stop using the tea or hydrate properly, you will regain the water weight.
Losing water weight can also lead to dehydration. It is not a healthy or safe practice and can lead to serious health problems.
For weight loss to be sustainable you need to decrease the amount of fat stored in the body.
Many weight loss teas contain a natural laxative called senna.
Laxatives make you move your bowels more frequently and in some cases senna can cause stomach cramps, pain and diarrhea.
Long-term use of laxatives is not only unpleasant, it can become dangerous.
Continual use can cause your body to become dependent on the laxative, which is especially problematic when you stop taking them. Dehydration and severe electrolyte imbalance can also occur.
Also be mindful that psyllium husk, a type of fiber supplement, can have a laxative effect. It's commonly used as an ingredient in weight loss teas.
Diuretics make you urinate.
This is because they stimulate the body to excrete increased water and sodium.
This may be useful if your body is holding on to excess fluid. However, they are not useful for long-term weight loss and can cause dehydration.
Natural diuretics found in weight loss teas include:
Tea leaves naturally contain caffeine, albeit in small amounts.
Summary: Many weight loss teas contain laxatives and diuretics. They can cause a loss of water weight but not body fat.
Do They Enhance Fat Burning, Suppress Appetite and Boost Metabolism?
Some weight loss teas do not contain diuretics or laxatives.
Instead they use ingredients claimed to have fat-burning, appetite-suppressing and metabolism-boosting properties.
Many of these ingredients lack evidence to support these claims.
Garcinia Cambogia has been used as an ingredient in many weight loss supplements.
However, evidence to support weight loss claims is not strong.
A large systematic review of trials found any weight loss that resulted from taking garcinia cambogia was minimal and short term (1).
Watch this video for a more in depth look at garcinia cambogia.
There's no solid evidence in humans available to support any weight loss effects of Ginseng (2).
This includes gynostemma pentaphyllum which is often referred to as a type of ginseng.
The ancient practice of meditation—particularly mindfulness meditation—has recently surged in popularity. In fact, in the U.S. about 8 percent of adults and 1.6 percent of children have tried it already. This is because the health benefits of mindfulness meditation are incredibly impressive … and supported by scientific studies.
There is a huge fad component to the gluten-free movement.
However, many people genuinely cannot tolerate it, even without celiac disease.
The problem is they don't realize it and then live with the symptoms as though it's normal.
Craving sugar and gaining weight?
Some may diagnose this cluster of symptoms as Adrenal Fatigue … but is it actually a real condition?
This is a sales-free look at the facts.
What is Adrenal Fatigue and the Function of Adrenal Glands?
Adrenal fatigue refers to a cluster of common symptoms one might experience when under long-term mental or emotional stress.
It's also known as Adrenal Fatigue Syndrome, HPA Axis Disregulation or Hypoadrenalism.
The concept was introduced in 1998 by chiropractor and naturopath James Wilson. Since then it has become very popular among alternative health practitioners.
The adrenal glands—small organs above the kidneys that produce certain hormones—help to manage stress. But they are said to grow tired or fatigued when overworked for a long period of time.
As a result they produce inadequate amounts of hormones that influence stress, such as cortisol. At least, that's the theory.
"Adrenal fatigue is not a real medical condition. There are no scientific facts to support the theory that long-term mental, emotional or physical stress drains the adrenal glands and causes many common symptoms."
So there is clearly a divide in opinion between alternative and conventional medicine.
Summary: Adrenal fatigue is a condition said to be caused by long-term stress. However, it is not recognized in the medical community.
Adrenal Fatigue vs. Adrenal Insufficiency
It's important not to get these confused.
Much like Hashimoto's disease it cannot be treated with diet and lifestyle alone. Without proper hormone replacement medication, adrenal insufficiency is life-threatening.
Adrenal fatigue, if it exists, is not immediately dangerous.
Summary: Adrenal fatigue should not be mixed up with adrenal insufficiency, which is a rare yet serious condition treated with strong hormone medication.
Adrenal Fatigue Symptoms Are Subjective
It's human nature to try and make sense of patterns and clusters.
Clusters of symptoms are no exception and we often give them a non-scientific name, like Leaky Gut Syndrome.
Adrenal fatigue is another example. These are several symptoms listed on James Wilson's AdrenalFatigue.org website:
- Always tired
- Feeling stressed
- Struggling to keep up with daily tasks
- Reliance on caffeine through the day
- Strong cravings for sugar or salt
- Low libido
Immediately it's clear how broad and unspecific symptoms are. No doubt they are real, but they easily overlap with other known medical issues.
The real issue is that the symptoms are not objective, nor measurable. That is, there is no validated symptom score to assess how mild or severe a case may be.
Summary: Symptoms of adrenal fatigue are real, but so broad that they overlap with other medical issues.
Adrenal Fatigue Tests Are Not Accurate
Proponents claim existing blood tests are not sensitive enough to detect small declines in adrenal function.
So the only criteria for diagnosing adrenal fatigue are the non-specific symptoms.
Therefore it's not actually possible for health practitioners to determine what classifies as adrenal fatigue and what doesn't, assuming it is a real condition.
But researchers note salivary cortisol is not necessarily representative of blood cortisol. Numerous other factors including adrenal sensitivity, cortisol binding, estrogens and HPAA responsivity influence the saliva reading. This makes it an unreliable stress biomarker on its own (3).
Additionally, treatment endpoints are as non-specific as the diagnosis.
In other words, without measurements there is no way to confirm when a patient's adrenals are corrected or "cured." It's the reason why studies must use adrenal fatigue questionnaires to measure results instead of testing physical or chemical changes (4).
If this were the case for other common medical conditions, like type 2 diabetes or high blood pressure, the doctor would never know when to increase, decrease or stop medication.
Summary: There is no way to accurately test or measure adrenal fatigue. Therefore practitioners cannot actually prove who has it, nor when it has been corrected.
Adrenal Fatigue Supplements
Few medical conditions are broad and unmeasurable.
Fibromyalgia is one of them, perhaps adrenal fatigue is another.
Despite this, supplements for adrenal fatigue and associated natural remedies are more common than ever. Even the creator of adrenal fatigue, James Wilson, sells his own line of supplements online.
Keep in mind that given the non-specific nature of adrenal fatigue, there is no way to develop a supplement to specifically treat it. Nor a way to test if that supplement is effective.
Nutrition supplements should be used to supplement deficiencies linked with a particular condition. However, only a handful of studies even mention adrenal fatigue let alone have tested for associated nutrient deficiencies.
There are also many hormone supplements available that promise to treat this condition. But these can do more harm than good if they aren't required.
Adrenal Crisis is not uncommon in patients receiving inappropriate adrenal hormone treatment.
Summary: Adrenal fatigue supplements are sold by many alternative health practitioners, including the creator of adrenal fatigue. However, it's not possible to develop or test a supplement's effectiveness without a way to measure the problem condition first.
Adrenal Fatigue Treatment and Diet Changes Do Help
Many claim that adrenal fatigue "treatment" restored their health.
They lost weight, have more energy and feel fantastic. Of course this is great to hear, but actually not surprising.
The typical adrenal fatigue treatment protocol includes eating more fruits and vegetables, cutting out sugar-laden and starchy junk food, exercising more, improving sleep quality and taking measures to reduce stress.
These recommendations address the fundamental aspects of good health, also known as the pillars of health. Anyone who improves one or more of these diet and lifestyle aspects will feel better to some degree.
But whether adrenal gland function actually shifts as a result of these changes is debatable and not possible to prove from observation.
Summary: An adrenal fatigue diet and treatment protocol may help improve an individual's health. But this is because it encourages important diet and lifestyle improvements, rather than a boost to adrenal gland function.
Could Adrenal Fatigue Be Subclinical Adrenal Insufficiency?
Some proponents claim adrenal fatigue is a mild or early form of adrenal insufficiency and should be formally recognized as such.
But in cases of subclinical hypothyroidism, doctors are able to measure a patient's blood TSH levels. This provides an objective measurement used to determine diagnosis and treatment efficacy.
As this isn't possible with adrenal fatigue it's difficult to confirm this theory, though it is interesting.
Is Adrenal Fatigue Real?
It's frustrating if you constantly feel unwell to have a doctor that seems unable or unwilling to discover the true problem.
I understand that, because the symptoms are very real. It's the reason adrenal fatigue has become such a popular alternative approach to this type of scenario.
However, there is no scientific evidence to validate the concept. Without any reliable method of measuring adrenal fatigue it's near impossible to make the "diagnosis."
That said, believing one has adrenal fatigue can sometimes be beneficial. It provides a "physical" reason for individuals to take action and improve their diet and reduce stressors. This is why so many experience improvements.
But if the real problem is more sinister than poor diet and high stress, accepting adrenal fatigue as the root cause can be dangerous. It only prolongs the time required to discover what's really causing symptoms.
Add to that the unproven adrenal fatigue supplements pushed on desperate customers and you start to question how helpful or ethical this diagnosis is.
In the end it's clear that taking measures to improve your diet and better manage the stressors in your life is key to getting your health back … Whether adrenal fatigue exists or not.
Reposted with permission from our media associate Diet vs Disease.