GLP-1 is not a drug. It is a hormone your body already makes.
GLP-1 stands for glucagon-like peptide-1. It is a small peptide hormone released mostly from your intestines when you eat. It helps tell your pancreas when to release insulin, helps control glucagon, slows down how quickly food leaves your stomach, and sends signals to your brain telling you that you are full.
Your body already has this system.
The pharmaceutical industry figured out how to copy part of that system.
Drugs like semaglutide are laboratory-made versions of this natural hormone signal. Scientists changed the peptide so your body cannot break it down nearly as quickly.
Your natural GLP-1 works for minutes.
Semaglutide was designed to keep working for days.
That is why you can take an injection once a week.
And yes, these drugs can make people lose a lot of weight.
But that brings us to the question nobody seems to want to ask:
Are we actually fixing the problem, or are we overriding the body's hunger signals with a drug?
At Boost Blenz, we believe long-term health starts with understanding why the body became unhealthy in the first place.
Key Takeaways
HOW DOES GLP-1 MAKE YOU LOSE WEIGHT?
GLP-1 drugs make you feel full longer, slow down digestion, reduce hunger, and make many people think about food less. When someone is not as hungry, they usually eat fewer calories, and if you eat fewer calories long enough, you lose weight. That part works.
But weight loss does not automatically mean better health. If someone loses 50 pounds, what exactly did they lose? Was it fat, water, muscle, or a combination of all three? That matters, because the goal should not simply be to weigh less. The goal should be to become healthier.
Weight Loss Does Not Automatically Mean Better Health
WHAT ARE THE REPORTED SIDE EFFECTS?
This is where people need to start reading beyond the advertisements.
GLP-1 medications have been associated with a long list of side effects.
The common ones include:
- nausea
- vomiting
- diarrhea
- constipation
- stomach pain
- digestive problems
But there are also more serious problems that have been reported.
Gastroparesis
GLP-1 drugs intentionally slow down how quickly your stomach empties.
For some people, that slowing can become severe.
Gastroparesis means the stomach is not moving food normally.
People sometimes call this "stomach paralysis."
Imagine eating food and having it sit in your stomach much longer than it should.
People can experience nausea, vomiting, bloating, pain and feeling full after eating very little.
The manufacturers themselves warn about severe gastrointestinal problems and severe gastroparesis.
That deserves attention.
INTESTINAL BLOCKAGE AND "GUT PARALYSIS"
There have also been post-marketing reports involving:
Ileus.
Intestinal obstruction.
Severe constipation.
Fecal impaction.
An ileus happens when movement through the intestines slows dramatically or stops.
That is serious.
If somebody taking one of these medications tells you they haven't had a bowel movement for days, that shouldn't simply be brushed aside as an inconvenience.
Your digestive system is supposed to move.
GALLSTONES AND GALLBLADDER PROBLEMS
Gallstones have also been reported in people using GLP-1 medications.
So has cholecystitis, which means inflammation of the gallbladder.
Symptoms can include:
severe abdominal pain,
fever,
changes in stool color,
and even yellowing of the skin or eyes.
Rapid weight loss itself can increase someone's chances of developing gallstones.
But whether the problem comes directly from the medication, the rapid weight loss, or a combination of factors, the person taking the drug still has to deal with the consequence.
That is what matters to us.
PANCREATITIS
The pancreas is another concern.
Acute pancreatitis has been reported in GLP-1 users.
Pancreatitis means inflammation of the pancreas.
This can cause severe abdominal pain and can become very serious.
Cases of severe pancreatitis have also been reported after these medications reached the market.
Does that mean everyone who takes GLP-1 medication will develop pancreatitis?
Of course not.
But we don't believe something should be ignored simply because it doesn't happen to everybody.
If it has been reported, people deserve to know about it.
KIDNEY PROBLEMS
Kidney problems have also occurred.
One reason is very simple.
Some people taking GLP-1 medications experience severe:
vomiting,
diarrhea,
nausea,
and decreased food and fluid intake.
That can lead to dehydration.
Severe dehydration puts stress on your kidneys and can contribute to acute kidney injury.
Again, this doesn't mean the medication is literally poisoning every person's kidneys.
It means there is a real pathway by which problems can happen.
You should know that before you decide something is harmless.
ANAPHYLAXIS AND ALLERGIC REACTIONS
Serious allergic reactions have also been reported.
That includes anaphylaxis and swelling known as angioedema.
Anaphylaxis can become life-threatening very quickly.
Again, maybe it is uncommon.
That isn't our point.
Our point is:
People deserve to hear the entire story before putting something into their body.
WHAT ABOUT MUSCLE LOSS?
This is one of the biggest problems I have with the obsession over the number on the scale.
Somebody says:
"I lost 50 pounds!"
Great.
But how much was fat?
How much was water?
How much was muscle?
Research on GLP-1 and similar weight-loss drugs has shown that people can lose a meaningful amount of lean body mass along with fat.
That doesn't mean these medications are directly attacking your muscles.
It could happen because people are eating dramatically less.
They may not be eating enough protein.
They're carrying less body weight.
They may not be lifting weights.
They may simply be losing weight too quickly.
But whatever the reason, losing muscle while losing weight matters.
Muscle is incredibly important as you age.
It helps regulate glucose.
It keeps you strong.
It helps protect your bones.
It keeps your metabolism active.
The goal should never be:
Get skinny at any cost.
The goal should be:
Lose excess fat while protecting your health and your muscle.
Protect Your Muscle, Not Just the Number on the Scale
WHAT ABOUT BONE LOSS?
Bone health also deserves attention.
When someone loses a lot of weight very quickly, the amount of mechanical pressure placed on the bones decreases.
Your bones respond to physical stress.
That's one reason lifting weights is so important.
Poor nutrition can also become a problem when someone barely wants to eat.
Are they getting enough minerals?
Enough calcium?
Enough vitamin D?
Enough protein?
Enough total nutrients?
Weight loss is not automatically nutritional health.
You can weigh less and still be undernourished.
THEN WHY DOES FASTING WORK DIFFERENTLY?
This is where things get interesting.
One explanation for muscle loss on GLP-1 drugs is:
People aren't eating enough calories or protein.
Fair enough.
But during a real fast you aren't eating any protein.
So why doesn't the human body immediately destroy all of its muscle?
Because fasting triggers an entire metabolic survival system.
Your body was designed to handle periods without food.
At first, you burn through stored glucose called glycogen.
Then insulin drops.
Your body begins releasing more stored fat.
Your liver starts producing ketones.
Those ketones become another fuel source.
As fasting continues, your metabolism adapts.
The body begins relying much more heavily on stored body fat.
That doesn't mean fasting causes zero muscle loss.
Long fasts absolutely can cause some lean-tissue loss.
But fasting creates a very different metabolic environment than taking a medication to continuously suppress your appetite.
Fasting vs. GLP-1 Drugs
| GLP-1 Drugs | Fasting |
|---|---|
| Drug stimulates GLP-1 receptors | Uses the body's natural fasting response |
| Hunger is pharmacologically suppressed | You intentionally stop eating |
| Food still enters the digestive system | No food enters during the fast |
| Digestion is slowed | There is nothing to digest |
| Insulin still responds when you eat | Insulin generally drops |
| You eat fewer calories | You temporarily eat zero calories |
| Fat burning can increase | Fat burning increases substantially |
| Ketones depend on what you're eating | Ketones normally rise |
| Lean mass can decrease | Lean mass can also decrease |
| Drug may be used continuously | Fasting is normally temporary |
| Stop the medication and hunger may return | Eat again and the fast ends |
Fasting isn't magic.
It isn't appropriate for everybody.
But it uses metabolic pathways humans have had for thousands of years.
That is very different from taking a long-lasting drug designed to stimulate one hormonal receptor pathway week after week.
WHAT HAPPENS WHEN YOU STOP GLP-1?
This may be the biggest question of all.
What happens when you lose the weight and stop taking the medication?
In one major semaglutide study, people regained roughly two-thirds of the weight they had lost within a year after stopping the drug.
Think about what that means.
The medication helped control hunger while people were taking it.
Then the medication disappeared.
Hunger returned.
And much of the weight came back.
That shouldn't surprise anybody.
If you never change what created the problem, why would you expect the problem to disappear?
If somebody goes back to eating the same food, drinking the same drinks, consuming the same sugar and living the same lifestyle, the medication never taught them anything.
It controlled the problem while they were taking it.
That is completely different from learning how to control your own health.
Two-Thirds Came Back Within a Year
YOUR BODY ALREADY PRODUCES GLP-1
This is the part people should be talking about.
We don't have to introduce GLP-1 into the conversation like it is some completely foreign discovery.
Your body already makes it.
Research has found differences in GLP-1 response among some people with obesity and metabolic disease.
That raises a much more interesting question:
Can we improve the way our own body regulates GLP-1, insulin, hunger and blood sugar?
Food itself stimulates GLP-1.
Protein can stimulate it.
Fat can stimulate it.
Carbohydrates stimulate it.
Certain products created by your gut bacteria when they ferment fiber can also influence GLP-1 signaling.
Exercise and metabolic health also affect the larger system controlling blood sugar and appetite.
So maybe we should start asking:
Why did the system stop working properly?
LOOK AT WHAT YOU ARE EATING
This is where everything starts.
Walk through the average grocery store.
Look at breakfast food.
Cereal.
Toast.
Bagels.
Waffles.
Pancakes.
Juice.
Granola bars.
Sweetened coffee.
Pastries.
Flavored yogurt loaded with sugar.
Most people start eating sugar and refined carbohydrates the minute they wake up.
Then they eat again a few hours later.
Then they eat again.
Then snacks.
Then dinner.
Then something sweet at night.
We spend the entire day feeding ourselves.
Then we wonder why our insulin and hunger signals are screwed up.
Stop eating dessert for breakfast.
Start reading the label.
Look at how many different forms of sugar are in processed food.
Pay attention to:
sugar,
corn syrup,
high-fructose corn syrup,
dextrose,
maltodextrin,
rice syrup,
cane syrup,
and the dozens of other ways manufacturers sweeten processed food.
You don't need to become scared of every carbohydrate.
But you should understand what you're eating.
STOP LIVING ON REFINED FOOD
We have made eating incredibly complicated when the basics really aren't.
Eat real food.
Eat enough protein.
Eat eggs.
Eat meat.
Eat fish.
Eat vegetables.
Eat nuts.
Eat seeds.
Eat healthy fats.
Eat whole foods that actually look like food.
Reduce the breads.
Reduce the cereals.
Reduce the pastries.
Reduce added sugar.
Stop drinking your sugar.
Stop eating all day long.
And stop believing you need some new manufactured product every two hours to keep yourself alive.
Humans didn't evolve eating from sunrise until bedtime.
THEY SELL YOU THE FOOD AND THEN SELL YOU THE SOLUTION
This is the part that frustrates me.
For decades we built a food system around cheap ingredients.
Refined grains.
Sugar.
Corn syrup.
Industrial oils.
Artificial flavors.
Highly processed convenience foods.
Food designed to sit on shelves for months.
Food designed to be cheap.
Food designed to make you want another bite.
Then obesity exploded.
Diabetes exploded.
Metabolic disease exploded.
And now we're told the solution is another medication.
Think about that.
We feed people highly processed food for decades.
Then when their metabolism stops working properly, we sell them an injection that reduces their desire to eat.
Maybe we should also question the food.
Maybe the body isn't the problem.
Maybe the environment we put the body into is the problem.
FOUR YEARS IS NOT FORTY YEARS
GLP-1 medications have been studied.
There is real clinical research behind them.
Nobody needs to pretend otherwise.
But these drugs have not been used for obesity for 30 or 40 years.
We simply cannot know today what decades of continuous use will look like.
That is impossible.
History is filled with medications that were widely prescribed before we fully understood every consequence.
That doesn't automatically mean GLP-1 drugs will become one of those examples.
But history should teach us some humility.
That is why post-marketing monitoring exists.
Once millions of people start using a medication, we learn things clinical trials sometimes could not show.
So when patients report serious problems, we pay attention.
We don't dismiss them because they're inconvenient.
THE BOOST BLENZ APPROACH
Our philosophy is completely different.
We believe your body is incredibly adaptable when you stop working against it.
Learn what you're eating.
Read ingredients.
Reduce added sugar.
Eat enough protein.
Build muscle.
Exercise.
Walk.
Sleep.
Drink clean water.
Get outside.
Get sunshine.
Make sure you're getting minerals.
Fast intelligently when appropriate.
Take care of your gut.
Support your liver and kidneys.
Spend time barefoot outside if grounding is part of your routine.
Reduce unnecessary chemicals in your food, water and environment.
And most importantly:
Understand your body.
We don't believe a laboratory-made hormone analog can replace diet.
It cannot replace exercise.
It cannot replace muscle.
It cannot replace sunlight.
It cannot replace minerals.
It cannot replace sleep.
It cannot replace discipline.
And it cannot teach you what you're eating.
There may absolutely be situations where a doctor and patient decide a GLP-1 medication makes sense.
But that shouldn't stop us from questioning why we have normalized the idea that people may need an appetite-suppressing medication indefinitely.
QUICK WEIGHT LOSS ISN'T THE SAME AS HEALTH
We have become obsessed with speed.
How fast can I lose 20 pounds?
How fast can I lose 50?
How quickly can I change my body?
But your health isn't a 30-day competition.
The habits you build matter more than the number you see next month.
If you lose 50 pounds with an injection but never learn why you gained the weight, what happens when the injection disappears?
That is the question.
Long-term health requires education.
It requires changing habits.
It requires understanding your food.
It requires understanding your body.
It requires doing some things that aren't easy.
There is no injection for that.
Take Charge of Your Own Health
Read the label.
Question the ingredients.
Stop consuming huge amounts of added sugar.
Build muscle.
Move.
Fast when appropriate.
Get outside.
Get sunlight.
Get your minerals.
Take care of your digestive system.
Support the organs your body already uses to process and eliminate waste.
Learn what is in your food.
Learn what is in your water.
Pay attention to your environment.
You don't have to blindly accept that being unhealthy is simply your genetics or that permanent medication is your only option.
Your body isn't something you should give up on.
Your body is something you should learn how to use.
We aren't interested in quick fixes.
We're interested in creating habits that still work 10, 20 and 30 years from now.
Because the real goal isn't just losing weight.
The real goal is getting your health back and knowing how to keep it.
