Safety
Cardio Slim Tea Side Effects and Drug Interactions
Most people who drink herbal tea notice little, but some Cardio Slim Tea herbs can interact with medication.
Hibiscus may add to blood pressure pills, green tea cuts nadolol levels, chamomile and ginseng may affect warfarin, ginseng may lower blood sugar, and dandelion may add to water pills. No amounts are published, so ask a pharmacist first.
Written by the Cardio Slim Tea reading deskUpdated
Everyday effects
What side effects might you notice from Cardio Slim Tea?
Mild stomach upset, heartburn, trouble sleeping and pink urine are the most likely ones. Each comes from a named herb, not from any study of the tea itself.
No trial has tested the finished tea, so these effects come from research on single herbs, usually at much larger doses.
A pouch sold as a month gives about 2 g of tea a day for all 14 herbs together, so each share is likely small. No amounts are printed, though, so nobody outside the maker knows (Cardio Slim Tea sales page).
- Ginger: heartburn, belly discomfort or loose stools in some people (NCCIH - Ginger).
- Beetroot: pink or red urine or stool. It looks alarming but is harmless.
- Oolong and ginseng: a lighter, shorter night of sleep, mostly with a late cup (NCCIH - Asian Ginseng).
- Chamomile and dandelion: allergy in people who react to ragweed or daisies (NCCIH - Chamomile).
All 14 herbs
Which herb in Cardio Slim Tea causes which side effect?
For most readers, interactions matter more than side effects.
| Herb | Possible side effects | May interact with | Source |
|---|---|---|---|
| Hibiscus | Lower readings than expected | Blood pressure medicines | (Ellis 2021 - Hibiscus BP meta-analysis) |
| Beetroot | Pink urine or stool | Blood pressure medicines (nitrate at juice doses) | (Bahadoran 2017 - Beetroot juice BP) |
| Green tea (decaf, per sales page) | Liver injury with extracts, not brewed tea | Nadolol | (NCCIH - Green Tea) (LiverTox - Green Tea) (Misaka 2014 - Green tea and nadolol) |
| Oolong | Jitters, poor sleep (caffeine, amount not published) | Other caffeine sources | (FDA - Caffeine: how much is too much) |
| Ginger root | Heartburn, belly upset, diarrhea | None named in our source | (NCCIH - Ginger) |
| Chamomile | Allergy, rarely severe | Warfarin, some liver-processed drugs | (NCCIH - Chamomile) |
| Dandelion root | Allergy in ragweed-sensitive people | Water pills, diabetes drugs, blood thinners | (NCCIH - Dandelion) |
| Hawthorn berry | Dizziness, nausea, muscle pain | Heart medicines such as digoxin | (NCCIH - Hawthorn) |
| Korean ginseng | Insomnia | Diabetes drugs, warfarin and clotting | (NCCIH - Asian Ginseng) |
| Curcumin | Liver injury reports, mainly high-absorption forms | Ask about liver-processed drugs | (NCCIH - Turmeric) |
| Cinnamon bark | Coumarin in cassia type (type not stated) | Caution with liver disease | (NCCIH - Cinnamon) |
| Grape seed extract | Generally well tolerated | Little known in pregnancy | (NCCIH - Grape Seed Extract) |
| TMG (betaine) | None found at tea amounts in our sources | None named in our sources | (Olthof 2003 - Betaine and homocysteine) |
| Lemongrass | No source in our list | No source in our list | None |
Each herb has its own deeper page. Start with the full list of 14 ingredients.
Blood pressure medicine
Can Cardio Slim Tea add to blood pressure medicine?
It might. Hibiscus is the main reason: in small trials, hibiscus tea moved systolic readings about as much as some prescription pills did (Ellis 2021 - Hibiscus BP meta-analysis).
Add that to a pill already doing its job, and readings could drop lower than planned. Hawthorn and dandelion may also touch heart drugs and water pills (NCCIH - Hawthorn) (NCCIH - Dandelion).
Watch for dizziness on standing or home readings well below your usual range. If either shows up, stop the tea and call your doctor. Our guide to blood pressure numbers explains what each range means.
Keep taking prescribed medicine; never stop it because of a tea. The AHA says never change a dose without your healthcare professional (AHA - Types of BP medications).
Green tea and oolong
What about green tea, nadolol and caffeine?
Green tea can blunt one beta-blocker, and oolong brings caffeine.
Less medicine in the blood
In 10 healthy people, about 700 mL of green tea a day for two weeks cut nadolol levels by about 85% (Misaka 2014 - Green tea and nadolol). Its effect on blood pressure weakened too.
Oolong is not decaf
The sales page calls the green tea decaffeinated, but oolong keeps its natural caffeine. No amount is published. The FDA puts 400 mg a day as a safe ceiling for most adults (FDA - Caffeine: how much is too much).
The tea likely holds far less green tea than that study used, but the share is unknown, so ask.
Full details on both teas are on green tea and oolong.
Blood thinners and blood sugar
Is Cardio Slim Tea a problem with warfarin or diabetes drugs?
It can be. Three herbs touch clotting and two touch blood sugar.
Chamomile
Interactions with warfarin have been reported, and people with ragweed or daisy allergy may react (NCCIH - Chamomile).
Korean ginseng
It may lower blood sugar and may interfere with clotting. People with diabetes are told to check with a provider first (NCCIH - Asian Ginseng).
On warfarin, tell your clinic before starting any new tea so they can check your INR sooner.
Cardio Slim Tea: from $49 a pouch60 g herbal tea · 2, 3 or 6 pouches · 60-day money-back guarantee
See packsThe liver
Can Cardio Slim Tea affect the liver?
The risk looks low at tea strength, but three ingredients have liver warnings in other forms. Curcumin has liver injury reports, mostly with high-absorption supplements (NCCIH - Turmeric).
Cassia cinnamon holds coumarin, linked to liver effects, and the seller does not say which cinnamon it uses (NCCIH - Cinnamon). Green tea extract pills, not brewed tea, are a known cause of rare liver injury (LiverTox - Green Tea).
Stop the tea and call your doctor if you notice:
- Yellow skin or yellow whites of the eyes
- Dark urine or pale stools
- New tiredness or nausea
Quick check
Should you talk to a doctor before your first cup?
Five yes-or-no questions. Any yes means a conversation first, or an emergency call for the last one.
See who Cardio Slim Tea is for for each group in detail.
Pregnancy and age
Is Cardio Slim Tea safe in pregnancy or while nursing?
It has not been shown to be safe, so skip it unless your doctor agrees. Some studies suggest ginseng may be unsafe in pregnancy (NCCIH - Asian Ginseng).
Turmeric supplements may also be unsafe in pregnancy (NCCIH - Turmeric). The tea is meant for adults 18 and over.
Emergencies
When should you call 911?
Call 911 if a reading is over 180/120 with chest pain, shortness of breath, back pain, numbness, weakness, vision change or trouble speaking (AHA - Blood pressure readings). Call too for any heart attack sign, such as chest pressure, a cold sweat or pain spreading to the arm, jaw or back (AHA - Heart attack warning signs).
Swelling of the face or throat, or sudden trouble breathing after a cup, is a 911 call as well.
FAQ
Cardio Slim Tea side effects: common questions
What are the side effects of Cardio Slim Tea?
The likely ones are mild: heartburn from ginger, pink urine from beetroot, and poor sleep from oolong caffeine or ginseng. The bigger concern is interactions with blood pressure pills, nadolol, warfarin and diabetes drugs.
Can Cardio Slim Tea make you dizzy?
It could, especially with blood pressure medicine, since hibiscus may add to those pills. Hawthorn also lists dizziness as a side effect. If you feel lightheaded on standing, stop the tea and call your doctor.
Can Cardio Slim Tea upset your stomach?
Yes, in some people. Ginger is known for heartburn, belly discomfort and loose stools. Having the cup with a meal may feel easier. If stomach trouble lasts more than a few days, stop and check with a doctor.
Can Cardio Slim Tea keep me awake at night?
It might, if you drink it late. Oolong has natural caffeine in an unpublished amount, and Korean ginseng can cause insomnia. A morning or early afternoon cup is the simple fix.
Can you be allergic to Cardio Slim Tea?
Yes. Chamomile and dandelion are linked with ragweed and daisy allergies, and reactions can be severe. Stop the tea if you get hives or itching. Facial swelling or trouble breathing needs a 911 call.
Is Cardio Slim Tea safe for seniors?
Age alone is not the issue; medicines are. Many adults over 65 take blood pressure, heart, blood-thinning or diabetes drugs that several herbs may interact with. Ask a pharmacist to review your list.
What should I do if I feel unwell after drinking Cardio Slim Tea?
Stop drinking it and note what you felt. Call your doctor about lasting dizziness, stomach pain or rash. Call 911 for chest pain, trouble breathing or facial swelling.
Who wrote this
Written and reviewed by
Pages built from the pouch, the brand graphic, the sales page and linked NIH, FDA, FTC and peer-reviewed sources.
Last updated . Read our editorial standards and how we check reviews. This website is run by an authorized U.S. retailer, not by the manufacturer. We earn money when you buy through our order links.
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