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Our first GrassrootsHealth collaboration results are here!

We’d like to thank everyone who continues to participate in our collaboration with GrassrootsHealth in the world’s largest effort to combat Vitamin D deficiency. We have the first round of results from Sperti Sunlamp users who participated in the collaboration!

Most experts agree a person’s Vitamin D serum level should be at least 40 ng/ml. Only 7% of the American population is estimated to have sufficient levels of Vitamin D.

Only 47% of GrassrootsHealth participants that don’t use a Sperti Sunlamp have a serum level of 40 or higher.

80% of all Sperti Sunlamp users who registered with GrassrootsHealth have normal or better levels of Vitamin D!

If you’re interested in testing your Vitamin D levels and participating in a collaboration that provides researchers with valuable information about Vitamin D deficiency and how we can fight it globally, you can visit here.

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Who is at highest risk of being Vitamin D deficient?

An image of a sunset with the words" 7 at risk groups of Vitamin D deficiency" over it.


A Vitamin D deficiency is very common in certain parts of the world, especially during the colder seasons. This is because the UV levels are virtually non-existent, therefore we are unable to absorb any Vitamin D within the skin. Although the miserable weather is a downer for all of us, some of us have a higher risk of developing a Vitamin D deficiency.

Shockingly, Vitamin D deficiency affects more than half of adults according to some national surveys. And over 20% have logged that they suffered outside of the colder seasons!

It is not always easy to identify by yourself if you are suffering from a Vitamin D deficiency, however, many people have identified that when they are lacking, they tend to experience symptoms like constipation, depression, weaker immune system and muscle weakness. On a more severe scale, both adults and children can be affected greatly by bone pain and growth.

Although, as mentioned above, a high percentage of people do suffer from this kind of deficiency, some of us are more susceptible to it than others! There are six groups of individuals with a higher risk than others, and they are:

  • Pregnant women/ women that are breast-feeding
  • Teenagers and young women
  • People 65 and over
  • Those that have limited sun exposure (tend to work inside lot and wear clothes that cover their skin)
  • People with darker skin
  • Infants and children under 15
  • People with bowel problems/ bowel conditions associated with poor fat absorption

The winter months can be difficult for those that struggle, especially due to the lack of natural sun rays during these times. Experts have recommended eating food rich in vitamin D to keep the levels up as much as possible. Vitamin D is found primarily in eggs, cod liver oil, liver and fortified foods.

Although many make sure that they are intaking a sufficient amount of vitamin d filled foods, supplementing is also an extremely beneficial option. Even if you’re spending time in the sun for a few weeks out of the year, it is always the safer option to invest in another way of receiving UVB to meet your needs. This is more important for those over the age of 65, as it has been scientifically proven that this age range generates 4 times less vitamin D in the skin than those in their 20s.

If you are categorized as one of the at-risk groups, the best way to start combatting vitamin D deficiency is to test your Vitamin D levels and receive the recommended supplements and actions that you should take to maintain your levels at a healthy rate.

Keeping on top of your health in this way has never been so easy. Between a variety of supplements and the Sperti Vitamin D Sunlamp, there’s a way to boost your Vitamin D levels for everyone.


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Vitamin D’s Role in Cancer Prevention

While you likely know that vitamins and nutrients are important for health, most people do not realize exactly how different substances specifically help protect them. One important nutrient for people is vitamin D, which has a number of benefits, one of which involves cancer prevention and protection. Let’s take a look at how this substance helps keep us safe from these diseases.

What is Vitamin D?

First, it is important to ensure we’re all on the same page about what vitamin D actually is. As a fat-soluble vitamin, vitamin D must be consumed in our diet or created by our body through sunlight exposure or UV lamps. It is recommended that people get approximately 600 IU of vitamin D each day; however, that amount can vary with age.

How Do We Know Vitamin D Helps Prevent Cancer?

The start of the investigation into vitamin D and cancer prevention is actually quite interesting. Researchers began to notice trends in rates of cancer. Specifically, people who lived in latitudes with higher levels of sunlight exposure tended to have lower prevalence of cancer as well as lower death rates from cancer.

Ultimately, it was hypothesized that vitamin D may be involved in this. Since people exposed to sunlight naturally produce vitamin D, people in sunnier areas would make more vitamin D. The correlation here definitely merited investigation and led to further research regarding the role of vitamin D in relation to cancer prevention.

What Has Research Found Regarding Vitamin D and Cancer? 

Research has largely confirmed the hypotheses that vitamin D is important for reducing incidence of cancer. One of the initial studies found that people who take 1,000 units of vitamin D each day had a 50% reduction in colon cancer rates. However, vitamin D was found to be effective in helping prevent a variety of types of cancer.

One of the most interesting is breast cancer. A study found that consumption of vitamin D reduced breast cancer occurrence rates in nurses by about 50%. Further research found that women who had greater levels of sun exposure as teenagers and young adults had reduced breast cancer rates of 70% later in life.

Other research found that vitamin D not only helps reduce risk of developing cancer but also likelihood from dying of it. Higher rates of vitamin D in people with colon cancer were associated with a 25% reduction in deaths from the disease, illustrating that vitamin D has properties that can help reduce the severity of cancer sometimes.

How Does Vitamin D Protect Against Cancer?

While research showed that vitamin D is helpful in protecting against cancer, one of the next questions is exactly how this happens. Researchers have engaged in a number of studies to try to better understand exactly how vitamin D reduces cancer rates and cancer deaths.

Ultimately, there are a number of reasons why vitamin D is effective against cancer. First, it promotes cell differentiation. This is important for many aspects of functioning but also helps reduce cancer risk. Additionally, vitamin D decreases the growth rates of cancer cells in general.

Another important effect of vitamin D is that it helps stimulate apoptosis, a fancy word for cell death. Cell death is a normal part of our body’s mechanism that helps balance healthy cells in the body by eliminating pre-cancerous and infected cells. So even though cell death may sound bad, it is important in this way.

Finally, vitamin D helps to reduce the amount of blood vessel formation within tumors, which also helps counteract their growth. Thus, there are a wide variety of actual physiological functions that serve to promote vitamin D’s excellent results.

What Does This Mean?

Ultimately, the data shows that vitamin D is very important for our health in many ways. Thus, taking advantage of vitamin D through getting a good amount of sunlight or regularly using a sunlamp can help greatly reduce your risk of cancer.


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Nitric oxide; Why it’s Great for your Health

An image depicting colored letters reading "nitric oxide" near a stethescope

Benefits of Nitric Oxide

While people understand that sunlight is good for them and helps with the production of vitamin D many do not know the benefits of the ultraviolet A band of light produced by the sun. Nitric oxide stores in human skin can be mobilized upon UVA light irradiation. Once mobilized a decrease in blood pressure and hence a reduction in risk of cardiovascular disease.

It is recommended that everyone gets at least 30 minutes a day of direct sunlight without causing sunburn. The reality is that this is difficult if not impossible depending on your daily obligations or the region you live in. Some decide to use sun lamps to help them, in general, feel healthier to treat physical or mental illnesses.

Better Exercise

Once in the blood nitric oxide can boost your exercise regime performance. It is involved with many cell processes, widening blood vessels and helping to increase the delivery of nutrients and oxygen to muscle tissue during exercise. More oxygen stops the body from going into an anaerobic state that produces acid as a byproduct. As a person will have less acid buildup the muscles will recover quicker allowing for a leaner or larger muscle depending on workout and nutrients taken.  

Lowering Blood Pressure

Those with high blood pressure are supposed to have difficulty mobilizing nitric oxide stores within the body. Endothelium dysfunction is where insufficient nitric oxide is produced at the endothelial cells that line the inside of the cardiovascular tree. This disfunction makes the lining harden and inelastic, reducing dilation that allows fluids to transfer between cells and the bloodstream.

To make things worse this process leads to a whole host of issues including furring up of the cardiovascular system, blood clots and stroke. Ineffective fluid transitions between cells and the bloodstream can also lead to cancer cells being retained by the body. By using UVA irradiation mobilization in suffers from high blood pressure can potentially help free up nitric oxide stores and help resolve some of these downstream challenges.

Erectile Disfunction

Higher nitric oxide in the bloodstream helps with libido and allowing more oxygen to go where it is needed. This is the premise of many current treatments on the market. By using UVA to mobilize naturally stored nitric oxide you could help improve challenges in this area.


Nitric oxide is important to the body to stay alive and healthy, if it fails to get enough of it into the bloodstream a lot of health challenges may occur. For example, endothelium dysfunction is treatable during the first few weeks before major damage occurs and getting UVA shouldn’t be a major challenge to keep you healthy. To have a store of nitric oxide most get this from foods such as citrus fruits, beets, meat and leafy greens; there is an abundance of it that can boost your store levels; however, remember to use those stores.

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Want Healthier Bones? Increase your Vitamin D!

Want Healthier Bones? Increase your Vitamin D!

Our bones are our body’s protector. They provide structure and shield our organs from harm.  Our bones are also where we store our calcium. When they detect our body needs calcium they release it into our bloodstream.  The amounts of calcium and vitamin D you intake into your body directly affect how much calcium your bones will store.

It makes sense that a recent study showed how significant Vitamin D is in maintaining good bone health.

This 2019 study consisted of 1,348 Australian women aged 70 to 85 (a population more prone to osteoporosis and bone fractures). The results showed that bone mineral density (a measure of bone quality) was higher with increased Vitamin D levels.  In addition to this, as the participants’ Vitamin D levels increased, their risk of fracture related hospitalization decreased.

If you don’t know your Vitamin D levels and you’re worried about your bone health, you can purchase a testing kit here.

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Vitamin D and Your Allergies

"Vitamin D And Your Allergies"


If you feel like you always have a runny nose and watery eyes, you might be suffering from allergic rhinitis (also known as hay fever).  Hay fever is caused by dust mites, pollen, or pet dander allergens and can be triggered both indoors and outdoors. Hay fever affects between 10% and 30% of the worldwide population.

Since hay fever is so widespread, shouldn’t there be a way to prevent it?

A recent study shows that there is!

German researchers studied 80 adults with both hay fever and Vitamin D deficiencies. The researchers blindly administered 40 adults with allergy medication, and the other 40 adults with allergy medication and Vitamin D. The adults who received just the allergy medication showed an 8% reduction in allergy symptoms after 8 weekly treatments. The adults who received the medication in addition to the Vitamin D showed an astounding 29% reduction in allergy symptoms.

If you suffer from seasonal allergies, raising your Vitamin D levels through supplements or our Vitamin D Sunlamp can be an effective preventative measure for the symptoms of hay fever.

If you’d like to test your Vitamin D levels, you can purchase a testing kit here.

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Can Higher Vitamin D Levels Better Your Mental Health?

Vitamin D is proven to help you build strong bones, but can it help you build a strong mind?

Studies say yes!

43.8 million American adults experience mental illness in a given year, and chances are you or a loved one are a part of that group.

A 2017 study measured the emotional health, self-perceived mental health, self-perceived general health, and self-perceived stress of more than 7,500 Canadians. The end result of the study was a positive association between good mental health and high Vitamin D levels.

If you’re ever wondering why we’re so passionate about Vitamin D, this is why!

If you’re wondering what your Vitamin D levels are but want to avoid a trip to the doctor, you can purchase a Vitamin D test here!

If you want to raise or maintain your Vitamin D levels, our Sperti Vitamin D Lamp can help the natural way!


Four charts portraying the positive association between high Vitamin D levels and good mental health
This chart was created by Grassroots Health to visualize the positive association of high Vitamin D levels and good mental health.










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Vitamin D’s Effect on Teeth

While Vitamin D is important for your body’s overall health, you may not know that it can have an impact on your teeth as well. One of the most important things that Vitamin D does is help your body absorb calcium. Without calcium, we can develop weak or brittle bones which can eventually lead to more dangerous health problems. Since teeth are composed with calcium, they could also become weak and decay without Vitamin D.

Keeping your Vitamin D levels high is the key to a bright and healthy smile. Not only is it crucial for adults but children as well. Someone may believe that since a child will eventually lose their baby teeth, it is not as important to keep them strong but that is not the case. When a child develops weak or damaged teeth, they can gradually get shift and cause damage to the gums and nerves. If a child does not take care of their teeth, it can lead to permanent damage to their mouth as an adult.

While it may seem silly, Vitamin D is actually crucial factor in maintaining a healthy body, smile and life.