Updated: 01/07/2018

Senna Review - 6 Things You Need to Know


I need to make a confession: I was obsessed with researching Senna, so we at DietSpotlight conducted an intensive review, examining the side effects, ingredients, clinical studies and level of customer service. Furthermore, we focused on hundreds of customer experiences and user responses from around the internet. Lastly, we summed up all the facts and details to give you the info you need. Dieters are willing to go to any length to lose those extra pounds, especially if they are stuck on the yo-yo train. This herbal laxative may not be the solution you’re looking for.

Senna Readers: Click here to find out why we're giving away samples of our product, Burn HD.

What is Senna?

Firstly, Senna is an herbal laxative used in some diet supplements. It is taken from Cassia Acutifolia, which is a flowering plant found in the tropics. It works by irritating the colon, which results in more bowel movements. Typically supplements and teas that contain this ingredient are used to reduce water weight gain, flush out the colon and remove toxins and impurities from the body. More than a few claim to help with weight-loss.

This natural herb has been used for centuries and it can help promote regularity. Both men and women can use this product, and it’s easy to acquire online through stores such as Amazon, but if you want to know if it’s REALLY connected to weight-loss, keep reading…

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Side Effects – “Something to Consider?”

The first potential issue is with Senna side effects. According to our Research Editor, “This herbal laxative can lead to some negative reactions, which may include diarrhea, low potassium levels, stomach cramps and dehydration. We’ve even found a few reports of joint pain and numbness.”

  • One user said, “Gave me a serious stomachache and diarrhea. No thanks!”
  • Another person stated, “These pills cause bowel irritation and cramping. I don’t think this is healthy.”

If you flip the script, there are users who never experienced a single side effects.

  • As one put it, “Works great…no side effects.”
  • Another offered up, “Finally a product that helps with constipation without cramps or causing diarrhea.”

Weight-Loss Results – “Anyone Actually Losing?”

We could not find any solid proof that Senna assists with weight-loss that’s lasts beyond the time when the herb is taken.

  • One user commented, “These do nothing for weight-loss. Better off just eating less.”
  • “Not a good diet pill option. Just gave me unbearable cramps,” said another person.

Though you’re not supposed to use laxatives for weight-loss, some users chose to do just that with positive results.

  • ” This makes you feel light and healthy,” according to one dieter.
  • Another says, “I am also able to maintain good health and weight!”

Well now, according to our extensive research, if there’s some small part of a product that’s bothersome, like side effects or no weight-loss, that could stop any chance of long-term success. If Senna is not ideal for helping you reach your goals, the dieter will likely turn to a clinically tested supplement shown to do just that.

Did We Find Solid Science?

Here at DietSpotlight, we prefer to see published science that supports the diet product or supplement we’re investigating. As for Senna, the only studies we found are evidence that this plant extract helps with regularity. This is because it’s a laxative. Sadly, there is no clinical proof that supports weight-loss. And, even if you do lose a few pounds, it’s only water weight.

What Users Are Saying

"”Was told by a friend to take this to keep myself regular after prolong use of opiates and it works GREAT! I take enough medication so it’s nice to take this all natural supplement instead of more man made medication.”"

"”I have to take more then 3 for it to work. but it seems ok”"

"”Gave me bad side effects…”"

Does Senna Really Work?

Well, we appreciate Senna’s been around forever and there are some positive comments online. Then again, we have some doubts about it because it’s not backed by science as a weight-loss aid. Plus, we’re leery about the potential for effects and dieter complaints we found on the web.

If you’d like to shed some serious pounds, we suggest you go for a supplement that packs clinically tested ingredients into a formula shown to help with weight-loss. Never settle for less than the best testimonials.

After scouring through hundreds of products, the best we’ve found this year is one called Dietspotlight Burn. This supplement uses a blend of four ingredients, which have been shown via clinical testing to spark metabolism and boost fat loss. We found very few reports of side effects, but under every rock we found reports of amazing results. You may even be able to take it with an herbal laxative like Senna, but check with your doctor first. This one offers the dieter everything we suggest.

The makers of Dietspotlight Burn are so positive about their product they’re offering a Special Trial Offer, which means you have nothing to lose but pounds and inches.

Learn More About Burn HD »
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What are the side effects of senna?

Senna side effects, as reported by customers, include stomach pain, cramping, nausea and irregular bowel movement.

What are the ingredients in senna?

Senna ingredients include cassia acutifolia. If you purchase a supplement that contains senna, there could possibly be additives and fillers included.

How do I know if Senna is right for me?

Choosing the right product is the #1 question asked by DietSpotlight readers. We recommend trying any product before buying it and know that finding a product with a sample offer is near impossible - so we created our own product, Burn HD, with scientifically backed ingredients.

Click here to get your sample of our powerful fat burner today.

Does senna work?

There are some studies showing senna work. The research we found centered on the effectiveness as a laxative, but not specifically for weight-loss.

Losing weight is important to dieters, so take a moment to think the effects of senna and consider a supplement like Dietspotlight Burn, which contains some clinically-tested ingredients and shown to boost metabolism and increase fat loss. This is what dieters look for to spark weight-loss.

How much does senna cost?

The cost of senna depends of the retailer selling the supplement. You can purchase the supplement for less than $5.

How should I take senna?

You’ll take senna based on the directions on the label. Typically, you use the supplement twice per day.

What type of laxative is senna?

Senna is a stimulant laxative.

Is senna FDA-approved?

Yes, senna is FDA-approved as a non-prescription laxative.

Is senna only available as a tablet?

No, senna isn’t only available as a tablet; it’s also available as a suppository, disintegrating strip, compounding powder and oral liquid.

Does senna come with a guarantee?

Senna doesn’t come with a guarantee, considering multiple companies sell the supplement. Contact the manufacturer of the supplement for additional details.

What is Senna used for?

Senna is used as a nonprescription laxative.

How does the laxative Senna work?

Senna works by increasing intestinal activity, resulting in a bowel movement.

What is Senna 8.6 mg used for?

Senna is a laxative that is used to relieve constipation. Before surgery and medical testing, it is used to empty the bowels.

What are the benefits of Senna tea?

Senna leaves are an FDA-approved nonprescriptive laxative used in detox tea. The tea works to treat constipation and to clear the bowels before diagnostic tests.

How often can you take Senna laxative?

You should only use a Senna laxative when you need relief from constipation or to clear bowels before diagnostic test or surgery. Using a Senna laxative for more than two weeks can cause bowels to stop functioning normally, leading to laxative dependence.

Can Senna cause diarrhea?

The possible side effects of Senna are stomach discomfort, cramps, and diarrhea.

Is Senna good for weight loss?

Senna is used to bring balance to your lifestyle and help with occasional constipation.

Why do you have to take Senna at night?

Senna should be taken at bedtime to produce relief from constipation by morning.

Senna Ingredients

There’s been a rumble in the weight-loss community about senna, so we wanted to dig deeper into the supplement by researching senna ingredients. We wanted to learn as much as we could so we looked closely at side effects and clinical data. Hundreds of experiences with the laxative were taken into consideration. After collecting all that information, we summarized it to give you the bottom line.

What You Need to Know

Firstly, senna is a natural laxative that works to promote elimination. The dosage will depend on the brand you choose, but you can expect to take it at least once daily. This is supposed to promote bowel movements, which can result in temporary weight-loss. You typically take it at home, but it is portable, a benefit.

The product, which has been used for centuries, is not synthetic, a positive sign. Online and offline stores sell senna, often in the supplement aisle – though you can find it with other laxatives. We like that it works to promote elimination and some users report good results, but read on…


The first issue we came across with senna ingredients is diarrhea. “Elimination does mean going to the bathroom,” explains our Research Editor. “It does not mean you spend all day in the in there for fear of leaving the house.”

“Got violently ill from senna. massive diarrhea and stomach pain. never again,” one user reports.

Another offers, “It doesn’t simply “get things going,” it can cause uncomfortable cramping (all night long) and diarrhea.”

Some wished for relief, “I don’t feel regular at all, but I do not have any bloating and I only get cramping right before having to go. Hoping the and diarrhea goes away soon.”

Stomach Pain – “Not Nice!”

Dieters also report that senna ingredients can cause pain. “Instead of instant relief, I got instant abdominal pain! I took one cup of tea in the evening, and a few hours later, I am bloated and in terrible pain and discomfort. I’d rather be left constipated. Never again,” a user says.

“Drank one cup of tea on Monday night. It is Wednesday and I am still sick. Bloated, stomach pains, back pains, headache…totally horrible,” explains a dieter.

Another shares, “I take 2 senna per day and herbal tea. Results in gas and pain.”

Our research shows us a simple connection between little things, like diarrhea, and a smaller chance of long-term success. If senna ingredients cause pain or loose bowels, the dieter will not stick around for long.

The Science

Science does support the use of senna ingredients for constipation. There’s no doubt it will work as such, but there is also clinical evidence of adverse reactions. According to Medline Plus from the National Institutes of Health, “Senna can cause some side effects including stomach discomfort, cramps, and diarrhea.” There is no connection between this supplement and permanent weight-loss. At DietSpotlight, it is the research that separates the effective from the ineffective. In this case, there’s not much support when it comes to losing.

The Bottom Line

Our look into senna ingredients left us with a solid feeling. We like the natural constipation relief it provides and there are some dieters who live by it to reduce fluid retention, but we can’t recommend a laxative for weight-loss as there’s no proof of long-term benefits. We’re also concerned with the reported side effects that include stomach pain and headaches.

If you’re at that point and you want to lose weight, our suggestion is to go with a supplement that’s proven with clinical research to help you shift that scale without worrying about negative side effects.

Among the best of all supplements we’ve come across this year is one called Dietspotlight Burn. With four ingredients in a proprietary blend, we were impressed to find clinical research showing the formula helps spark metabolism and heat up fat loss. There were no side effects reported by dieters using the product, but there were users that claimed seeing great results.

Plus, the company behind Dietspotlight Burn is so confident in the formula that they’re offering a Special Trial Offer.

Summer Banks Dietspotlight Author
About the Author:

Summer Banks, Director of Content at Dietspotlight, has researched over 5000 weight-loss programs, pills, shakes and diet plans. Previously, she managed 15 supplement brands, worked with doctors specializing in weight loss and completed coursework in nutrition at Stanford University. full bio.

5 Senna Reviews

  • Wasim

    Hello..I want to know if taking senna for long term can increase SGOT and SGPT and GGT blood result..

    • Anna (Editor)

      Hello. All users are different and can experience different side effects; please make sure to consult with your physician before taking this product.

  • lerato

    I thought senna will help me to weight. Yes it cause me a running stomach

  • Judy Browne

    I have read your report on senna because I wanted to know how it helps with weight lost. I am a 52yrs old lady going through menopause and I have gained 3 stones. I am doing everything I can to lose the weight so I eat right and go to the gym 4-5 times a week. I have lost 15lbs. I do take dr lee senna diet tea. I thought I should lose more weight after nearly six months of going to the gym etc. however that is not the case, so the report was helpful. I have good bowel movement every day and I thought that fat in my body is being getting raid off from my body. If that is not the case then I have to use other diet tea to accelerate my weight lost programme. cheers Judy

    • Adrian (Editor)

      Hi! Please make sure to consult with your physician before starting a new weight-loss program or product.