5 Side Effects of PhenQ (And How To Prevent Them)

January 9, 2024 |

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Weight loss drugs, especially those with stimulatory ingredients, are associated with severe side effects. This association raises questions on the safety of all effective fat burners, even if they are certified OTC drugs.

Hence, in this article, I will answer the question we get the most; what are the side effects of PhenQ?

Key Points:

  • Most PhenQ users report no or a few side effects, like gut unrest or insomnia, that are short-lived.
  • Consult your doctor before starting PhenQ if you are a pregnant or breastfeeding mother or have health issues like hypertension, heart problems, or gut ulcers.
  • Find out more about PhenQ on its official website.

PhenQ causes undesired effects, usually in the initial phase of supplementation when your body is not yet accustomed to its ingredients.

So, in the following sections, I will discuss the scientific reasons behind these effects, their intensity as reported in user feedback, and tips to escape these adversities.

How Safe Is PhenQ?

Compared to most fat burners that contain a heavy dose of stimulants, PhenQ has a much better safety profile.

It is made with natural ingredients scientifically proven to fire up fat burn without any long-lasting side effects.

Most PhenQ users say they do not experience any side effects as Lionel Johnson did while telling about his weight loss success with the product on Trustpilot.

PhenQ review - trust pilot 2

Others experienced some mild side effects in the initial days. Such reactions are natural as your body takes some time to adjust to the ingredients of any new medicine.

So, these effects are well-tolerated in most individuals and are soon relieved following the recommended practices.

The only time these side effects can be a concern is; if you have some persisting medical issues like BP irregularities, CVD predisposition, caffeine sensitivity, or stomach acidity.

That is why I strongly recommend consulting your physician before starting any diet drug.

In the next section, I have given a brief description of all the side effects reported by PhenQ users;

5 Side Effects Of PhenQ

I probed PhenQ user reviews on different platforms to find out what they experienced after consuming these diet tablets.

And after extensive research, I can say that insomnia and gut discomfort are the most common PhenQ side effects.

The presence of niacin in its composition can trigger skin rashes, but it is just a theoretical fear as no such results are reported in real user feedback.

Here are the effects experienced by users;

1. May Cause Insomnia

Sleep disturbance is the number one PhenQ negative review users gave after starting supplementation. This happens due to caffeine anhydrous, which boosts energy on one side but takes away sleep on the other.

PhenQ has as much caffeine as a cup of Café Latte. Hence, it can take the caffeine levels beyond the safe limit if you do not adjust your coffee intake.

This effect varies with the caffeine tolerance of different individuals.

PhenQ real reviews on Reddit show that some people adjusted to the increased caffeine intake within a few days, like this user, while others quit coffee to avoid tossing and turning in bed all night.

phenq real review

The brand also warns about this effect and recommends not consuming the drug in the evening or taking more than two pills daily.

But if you’re extra sensitive and even avoiding taking PhenQ late in the day or staying within the recommended dosage doesn’t work for you, PhenQ PM instead of PhenQ regular would make a better option, as it promotes sleep instead of causing insomnia or disturbed sleep patterns.

PhenQ PM cta1

Find out more about it in this detailed PhenQ PM review.

2. May Trigger Headache

Another common side effect of PhenQ is a headache. For this problem, Nopal cactus and caffeine can both be convicted.

Caffeine stimulation delays sleep onset and force the cognitive machinery to stay active for a long. And lack of rest also triggers headaches as a signaling response.

Plus, caffeine increases blood pressure and heart rate. When your BP is high, brain capillaries are distended, causing a strain on the brain cells. When prolonged, this condition ultimately leads to intensive headaches and fogginess.

Similarly, the Nopal cactus is known to stimulate migraines.

Check out my detailed post on how to cure & avoid headaches caused by PhenQ.

3. May Lead To Gut Unrest

Many PhenQ users also report gut discomfort. This time, capsinoids from Capsimax powder also join caffeine and nopal extract to cause trouble.

All these ingredients irritate gut walls, causing increased secretion of digestive acids.

This can lead to bloating, diarrhea, or acid reflux because, eventually, the increased volume flows back from the stomach into the food canal.

For most people, these symptoms disappear in a week or two, and they continue to lose weight happily, as Hillary Mullins told in her comment on youtube.

PhenQ Review - youtube comment

However, if you are sensitive to any of the drug’s ingredients, nausea may make it difficult to continue the medicine.

For example, user ‘cheeseburghers’ shared in his Reddit comment that PhenQ nauseated him, causing vomiting. So, he returned the bottle after using 1 pill. This acidity was probably because he was a caffeine-sensitive person.

phenq review quora

That is why I always recommend caffeine-sensitive persons go for PhenQ PM instead of the daytime PhenQ.

PhenQ PM capsule pills

4. Increases Heart Rate

Jennifet, a PhenQ user, wrote on Trustpilot that her energy level was greatly uplifted with the pill. However, after some time, she started feeling rapid heart palpitations.

Again, this negative PhenQ review can be associated with its caffeine content because it is known by science to increase blood pressure and heart rate.

However, research also proves that caffeine-induced heart rate increments rarely pose a serious risk for cardiovascular issues.

Also, this effect is mostly reported by caffeine users pre-disposed to hypertension or heart diseases. That is why such reviews are rare for PhenQ, as this is the only case I found complaining about heart palpitation.

5. Can Make You Anxious Or Agitated

And once again, it comes down to you being caffeine-tolerant or not.

When you start taking PhenQ, your blood caffeine level will become higher than routine. Most people feel energetic due to this increased concentration.

However, it can lead to anxiety or agitation in caffeine-sensitive people or those who usually consume less caffeine per day.

If your tolerance to caffeine is good, your body will settle with the caffeine in the diet pill within 3-7 days, as this person shared on Quora. He mentioned that drinking more water helped him get rid of this symptom faster, and the same might work for you as well. Or else, we always have the option of switching to a stimulant-free option.

How To Avoid PhenQ Negative Effects?

Here are a few tweaks you do to your diet to prevent PhenQ side effects;

1. Start With Half Dose

GI effects can be avoided by taking 1 pill for the first few days and switching to the recommended dose of 2 once your body is habitual of the drug’s ingredient.

2. Limit Your Caffeine Intake

Reduce the consumption of caffeinated food (like coffee, tea, sodas, energy drinks, and chocolate desserts) to prevent caffeine overdose.

This precaution can help you avoid most of the PhenQ adverse effects like insomnia, headaches, and palpitations.

To find out how many cups of coffee you can drink with PhenQ, check out my blog post on a related topic here.

3. Try A Low Fat Diet

Taking a low-fat diet will not only help you lose weight faster, but it also reduces the chances of getting a headache from PhenQ.

Research proves that where caffeine is a dietary trigger for migraine attacks, a low-fat diet can decrease the frequency of headaches.

4. Stay Hydrated

Drinking more water would help you avoid headaches after using PhenQ. Also, it acts synergistically with the weight loss drug, firing up fat metabolism in your body.

The Journal of Clinical Neuroscience published a study about the effects of hydration on migraine severity and frequency.

Its results infer that headache frequency, duration, and pain severity all decrease when a person consumes more water.

5. Eat Nutrient-Dense Foods

The constant rule of thumb that I go by is “Prefer nutrient-dense meals over-calorie dense meals.”

Nutrient-dense foods are rich in essential dietary components like fiber, anti-oxidants, minerals, and vitamins. Such foods include raw fruits, leafy vegetables, eggs, fish, and dairy.

Conversely, calorie-dense meals provide a lot of calories but contain fewer nutritional components. High-fat and high-carb foods like bakery items or fried snacks count in this category.

Food hacks are especially useful for preventing GI issues.

For example, fermented dairy and non-dairy foods supply probiotics to keep your digestive system strong, eliminating the probability of drug-induced diarrhea and bloating.

Similarly, fiber-rich foods also streamline bowel movements and reduce the chances of GI issues.

How Long Can You Take PhenQ?

PhenQ is a safe drug even when used for a long time. You can virtually take it for as much time as you want. However, it’s better to avoid taking fat burners for too long, even when they are all-natural and tested for safety.

Chances are that you will achieve your weight loss goals with this diet pill in 3-4 months. After that, I recommend you take a break from the supplement for a few weeks.

Then you may use it to maintain a healthy weight whenever you need it.

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