Best Night Time Fat Burners

Written by John Dixon

Fact Checked by: Roger Thomas


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The best night time fat burners can represent a solid tool in your weight loss arsenal. They won’t ever work in isolation and though they will form the minor partner as you lose weight. You will need a calorie deficit, which means eating less and/or doing more physical exercise. If you can achieve a deficit of 500 calories per day (eat 500 calories per day fewer than your body needs to maintain its current weight) then you will lose roughly 1 lb per week.

However, with this in place, fat burners come into their own. They can give you an energy boost to help you overcome any diet induced lethargy, can help you to feel better sated, can even out blood sugar and insulin spikes, and can induce greater rates of thermogenesis (the creation of heat from energy – basically ‘fat burning’ in layman’s terms).

However, most fat burners will contain plenty of stimulants. Ingredients like caffeine and guarana tend to feature heavily. They are also designed to keep you working at peak function. None of this is good or appropriate for getting a good night’s sleep.

Luckily, there is a whole range of fat burners designed to be used at night. They will help to optimise metabolic function and muscular recovery whilst keeping you full and peaceful through the night.

We’ve looked at some of the best night-time fat burners going.

phen24 bottles

Phen24 – Our Overall Top Choice

Phen24 has the perfect blend of daytime and nighttime benefits. With the nighttime pill helping to aid recovery and sleep and the daytime pill having potent thermogenic effects, this is our clear no.1 choice.

Our Top 6 Nighttime Fat Burners

Let’s take a look the best night-time fat burners available…


phen24 bottles

Phen24 by Wolfson Brands (UK) Ltd. is one of the cleverest weight loss supplements on the market. It contains a night time fat burner without being limited to bedtime use.

In fact, the formula is twofold. You take one during the day. This will act as a stimulant, giving you plenty of energy, inducing higher rates of thermogenesis, balancing blood sugar levels, and aiding in satiation, giving you fewer hunger pangs on a calorie deficit.

Then we come onto the second pill. This is for night time use. It contains 10 high potency, clinically tested ingredients which should optimize weight loss 24/7, giving you the best results possible even while you’re sleeping.

It should curb cravings, with greater satiation (perfect for midnight snackers – we’ve all been guilty), improve sleep quality and cognitive health, and reduce stress and anxiety – all whilst helping your body to fully recover from an active lifestyle.

All ingredients are completely natural. It includes glucomannan, a fiber perfect for lasting fullness and improved digestive health, both of which can be sorely needed during a calorie deficit. It also uses ingredients like ascorbic acid, plyridoxine HDL, chromium and thiamine, which will even out and optimize night time metabolic function no matter what you’ve put your body through.

There are few known symptoms, none of which are serious. The daytime pill’s high caffeine content can lead to stomach and digestive issues, and can exacerbate anxiety. The night time pill is pretty much free from side effects.

  • Natural ingredients
  • Everything is clinically tested
  • Proven to reduce cravings and improve energy levels
  • Leads to lasting fullness
  • Supports healthy cognitive function
  • The daytime pill’s stimulants aren’t suitable for everybody
  • Only comes as part of a double-edged supplement

Lean PM 

Lean PM bottle

Next up, we have Lean PM, made by Jacked Factory, a company known for quality and innovation. They always give excellent customer service and seem committed to giving you more than your money’s worth with whatever they give you.

With Lean PM, you get a night time fat burner and sleep aid rolled into one (quite a common tactic, as a good night’s sleep is one of the best things going for weight loss). With this in mind, most of their ingredients are proven to support healthy sleep patterns and undo stress, anxiety, and restlessness.

There is only one ingredient included that has been shown to help with fat burning, however. Green tea extract is common in thermogenic supplements and is a welcome addition, but on its own it is a little disappointing.

That being said, fat burning isn’t the main thing you will want Lean PM for. It is a perfect sleep and recovery tool. The vitamins, antioxidants, and amino acids included in its formula should help with recovery, building up lean muscle and strong bones, whilst giving you the rest you need to feel rejuvenated and make the most of your active lifestyle.

All ingredients are natural. There are only six, as well. This can be a good thing or a bad thing. The simplicity is good. You will likely experience no negative side effects and there is no added fluff or filler. However, as with its slimline approach to fat burning, a little more might be very welcome so if you want something more potent you may be better served opting for Phen24.

  • Fantastic sleep and recovery aid
  • Good customer service from Jacked Factory
  • Simple, natural formula
  • No known side effects
  • A little light on substance
  • More for improved sleep and restfulness than outright fat burning

NightTime Slim 

nighttime slim

Guess what NightTime Slim does? It helps you get slim at night. I love it when products do what they say on the tin!

Jokes aside, NightTime Slim is a very good product. It is made by NatureWise, whose self-proclaimed mandate is to promote wellbeing and inspire health through the use of all-natural compounds, and who are known for their commitment to giving you high quality products that help them spread this message.

As with most of the products on this list, NightTime Slim helps sleep continuity whilst also boosting your body’s natural thermogenic activity and other metabolic functions whilst you sleep.

This makes sense. With ingredients like coleus forskholii and cayenne pepper, it should give your metabolism a bit of a spike. This will help you to make the most out of a good calorie deficit during your weight loss journey. In particular, cayenne pepper is known and widely used for its thermogenic properties.

NightTime Slim also uses several other ingredients which should help you with a good night’s sleep. However, things get a little shadowy, here. NatureWise use a proprietary blend. This means that we can see the ingredients listed, but with no information on their potency or the amount included. This means we cannot accurately judge their efficacy, nor indeed their appropriateness.

Plenty of us want to know exactly what we’re putting into our bodies. We want to know we’re getting our money’s worth, which means knowing how much of any given compound you are buying.

Also, NightTime Slim contains caffeine. Though this will further enhance its fat burning potential, it seems a little self-defeating for a night time product. It may lead to issues sleeping, which seems counter intuitive.

  • Fantastic sleep and recovery aid
  • Non-GMO, organic, vegetarian, all-natural ingredients
  • Free from common allergens
  • Can reduce cravings whilst boosting metabolic function and calorie burn
  • Proprietary formula
  • Caffeine content seems an odd inclusion

Nutrex Lipo 6 

Nutrex Lipo 6 bottle

Nutrex Lipo 6 makes some big claims for itself across several slightly different formulas. In particular, their Black Ultra Concentrate claims to be one of the most potent, fast-acting products on the market. All their permutations should somehow ‘target’ body fat deposits whilst also improving your energy levels.

I have some issue with phrasing, here. It takes a bit of poetic license to claim that a product can target body fat. However, it should boost thermogenesis and pick up your metabolic rate in much the same way as the other products on this list should do – better than some, in fact.

You get one capsule with Nutrex Lipo 6. This should be everything you need to release extra energy stored as fat, and to improve energy levels and cognitive ability more broadly. It will also improve satiation, thus keeping hunger pangs at bay and making it easier to maintain your much needed calorie deficit.

It does all this with a range of usual suspects in its formula – these are ingredients that you will find cropping up time and time again in these kinds of nighttime fat burners.

For example, it includes caffeine anhydrous for an energy boost, as many fat burners do. Again, caffeine in a night time product is a bold choice. It will likely lead to worse sleep patterns even as your jittery energy increases. It will, however, give you a decent thermogenic effect, so it will work as a weight loss aid.

It also contains theobromine anhydrous, taken from green tea leaves and green coffee bean extracts. This can work as a nootropic, helping you to overcome the brain fog often associated with weight loss. Then there is yohimbine HCL, which is a rare inclusion. It has been clinically proven to reduce hunger and cravings.

Be careful, though. Nutrex Lipo 6 contains advantra z citrus aurantium and rauwolscine, both of which can effect blood pressure and heart rate (in both cases, either positively or negatively, depending on the user).

The ingredients list isn’t solid – it’s short and sweet, and a bit hit and miss. However, what works within it works very well.

  • It should reduce hunger pangs and cravings
  • Can lead to higher energy levels
  • May have a mild nootropic effect
  • The caffeine is again an odd choice for night time use
  • Some ingredients can have side effects

Night Shred 

night shred front of bottle

Again, we have a product that does what it says on the tin, this time with Night Shred by Inno Supps.

It helps you to get shredded whilst being perfect for night time use.

Night Shred is mostly a natural sleep support, though it does boast a decent thermogenic potential. All in all, it should help you to get better sleep whilst ramping up your metabolic rate.

Every ingredient included in Night Shred is completely natural, as is common and good with this kind of product.

There are few side effects noted with it, none of them severe. It has also been proven to promote restful sleep and to increase the speed at which you are able to drop off at night.

Its fat burning efficacy is a little more in question, however. It doesn’t contain any of the ingredients you will generally see in a weight loss aid or thermogenic booster – no green tea extract, no cayenne pepper, no weight loss suppressants like glucomannan.

A lot of what they do is also hidden in a proprietary blend. As we’ve seen, this can be bad news. You may know what you’re putting into your body, but you won’t know how much, how potent, and so on. It may indeed be pretty useless.

I wouldn’t write it off. Far from it. If the main thing holding you back from losing weight is a lack of sleep and low energy, you will probably benefit from Night Shred. However, manage your expectations – it may not do all that much for your overall metabolic function and if you want the benefits of a good nights sleep as well as increased metabolism then Phen24 is going to be your go to choice.

  • All ingredients are natural and safe
  • Customer reviews are encouraging
  • Very helpful for improving sleep
  • The proprietary blend hides a lot of dosing information
  • Very little included, if anything, that could directly benefit weight loss

Do Fat Night Time Fat Burners Work?

Yes, night time fat burners work, with a couple of provisos.

This applies to all fat burners. As above, they will not magically ‘burn fat’ in themselves. They will not allow you to lose weight whilst eating whatever you want and keeping to a sedentary lifestyle. It’s not what they do and not what they’re for.

The whole point of a fat burner is to make the slimming process a little more efficient and a lot more manageable. This is why we see certain types of ingredients cropping up a lot of the time.

Firstly, anything that can lead to decreased hunger is to be welcomed. It can be hard to maintain a calorie deficit when hunger bites. Therefore, good quality fibre is a good idea. If you can’t get it in your diet – which you might not be able to do, given your restricted eating – then supplements are a good source. Ingredients like glucomannan can keep you fuller for longer whilst enabling good digestive health.

Anything that can give you energy is good, too. Though odd in a night time supplement, fat burners in general benefit from caffeine and similar products. They perk you up. Nootropics are an added bonus, improving cognitive capacity. Brain fog and lethargy are all too common on restricted diets; these will help you to cut through it.

Finally, we want to keep metabolic rates at their optimum. This is once again hard to do on a restricted diet. Anything with a thermogenic effect – like caffeine, green tea extract, cayenne pepper, and so on – will therefore be welcome. These will keep you using energy as you are meant to, even as it becomes less and less available through restricted eating and weight loss.

How To Choose Good Nighttime Fat Burners

Bold claims with little efficacy are rampant in the supplements game. It can be hard to pick something that is good, that works, that is value for money. It can be hard to pick anything that has any kind of validity whatsoever.

With this in mind, keep your search to a list of common ingredients. We have seen a few of them in this list. Things like caffeine, guarana, green tea and green coffee bean extract have been proven to work, boosting thermogenesis and energy levels at the same time (iffy with night time fat burners, but nonetheless effective), as have compounds like cayenne pepper.

Good quality fibre should also feature if you’re looking for something to sate hunger and reduce cravings – whilst also improving digestive health along the way. Glucomannan is a very solid option, often used.

Also look for third party information. Positive reviews, both from customers and impartial reviewers like us, can make all the difference. Peer reviewed, non-biased studies are also always a good resource. Even if you can’t find a study on any given supplement, you will be able to find one on its constituent ingredients.

Go in with your eyes open and you should be able to find something that works for your needs.

What To Avoid When Buying A Night Time Burner

As above, anyone dealing with the supplements industry will want to be on the lookout for unsubstantiated claims. There are plenty of supplements out there that are, at best, useless. At worst, some of the junk you can find over the counter can be outright dangerous.

With this in mind, you want to avoid anything that doesn’t list its ingredients, preferably with quantities and accurate dosages. You should always be in control of what you put into your body. Taking something blind is an erosion of this control.

There are also some weight loss compounds that you want to avoid, no matter how effective they might claim to be. These include:

  • Dinitrophenol (DNP) is a heavy hitting metabolism booster that can be fatal. It is also highly illegal, so if you come across a product claiming to contain it, report it to the relevant authorities. Do not be tempted to buy.
  • Ephedra increases your blood pressure and heart rate as well as helping you to lose weight. Increases to both will put you at risk of chronic conditions such as heart disease and stroke.
  • M-synephrine also increases blood pressure and heart rate, though less noticeably than ephedra. It can be safe enough by itself but can be very dangerous when combined with stimulants such as caffeine. It can also cross the blood-brain barrier, so you really don’t want to be putting it in your body. It’s also often sold as p-synephrine or o-synephrine, so be careful of these, too.


Can you take fat burners at night?

Yes, though most will be inappropriate as many contain caffeine and other stimulants. Most night time fat burners are designed to give you little to no stimulation, meaning that they are perfect for taking before sleep.

What can I drink before bed to lose belly fat?

No drink before bed will help you to lose belly fat. You will lose belly fat by lowering your overall body fat levels, which will only come with a calorie deficit and likely an active lifestyle.

However, there are a couple of drinks that work well with a calorie deficit. For example, ginger helps with stomach issues and digestion. Ginger tea can therefore be a great relief on a calorie deficit. It can also speed up your weight loss as it eliminates certain waste products and toxins from your system.

Chamomile tea can have a similar effect. It can also lead to satiation, meaning that you won’t experience such bad hunger pangs during the night when following a calorie deficit.

What time should I take fat burners?

Take them whenever the instructions on the packet tell you. Buy appropriate ones for when you want to take them – night time fat burners for before bed, regular, stimulating ones for the rest of the time. High stimulant burners can also make a good pre-workout supplement, so consider taking half an hour before hitting the gym.

How do you get a flat stomach overnight?

You won’t, really. Your stomach will likely be flatter in the morning than the evening. It will be emptier and freer from digestive bloat. However, a flat stomach will generally come from weight loss. As above, you will get a flat stomach by lowering your overall body fat levels, which will only come with a calorie deficit.

What boosts metabolism the most?

There are a few ways to boost metabolism. Dietary supplements like those in our list above can help a great deal. However, high, metabolically active body mass will work the best. By this, we mean that high muscle mass will boost your metabolism.

Hard work will, too. Taking your heart rate about 85% of its max, into the ‘Orange Zone’, for twenty minutes or so will raise your metabolic rate for 12-24 hours afterwards.

Are fat burners worth it?

Yes. Though evidence goes both ways with regards many supplements’ efficacy, if you use fat burner as we’ve outlined today, they can be very potent. Don’t rely on them to burn fat for you. Use them to make your calorie deficit more manageable and more effective.

Either way, it will be rare to find a fat burner with any serious or long term side effects, so they won’t do you any harm even if you find the good they do a little limited.

Overall Top Pick – Phen24

For us, there is a clear winner – Phen24. It’s one of the best supplements we’ve looked at in a long time in any class. As a weight loss aid, it is potent and clever: it will keep your metabolic function at optimum all day long, then will give you much improved sleep and recovery at night.

It really does give you the best of both worlds.

phen24 bottles

Phen24 – Our Overall Top Choice

Phen24 has the perfect blend of daytime and nighttime benefits. With the nighttime pill helping to aid recovery and sleep and the daytime pill having potent thermogenic effects, this is our clear no.1 choice.

Written by John Dixon

John is a personal trainer and part time (although he might say full time) writer here at PathMed. He uses his knowledge of fitness and physiotherapy to deliver real insight in to our reviews and health guides.

John’s military background also brings a real-life perspective to his work.