Best Supplements for Women Over 40: What to Take and Skip

Nikkiey: If you're a woman over 40 and you feel like your body just changed overnight, I want you to listen to this. Because earlier this year, I went through something I wasn't expecting. I was sleeping 8 hours a night, but waking up feeling like I could go right back to sleep. Then I started crashing every day around 2 or 3 in the afternoon. My workouts felt harder, I was getting winded doing lifts that normally felt strong for me, and then my hair started thinning and breaking. That was the moment I knew something was off.

My mornings were the first thing I noticed. I would wake up after a full 8 hours and just lie there. Not refreshed, not ready, just heavy. Like my body hadn't actually rested at all. I would get up and go through the motions, but by 10 in the morning, I was already counting down to when I could go back to sleep.

Then my workouts started to shift. I had been training for years. I know what my body feels like under load. And suddenly, weights that were routine felt like a grind. I was getting winded, my recovery between sets was longer, and I was leaving the gym feeling depleted instead of strong. That's just not normal for me, and I knew it.

My hair thinning was what finally made me stop and say something is actually wrong. Because that is not something that you can explain away or push through. That was my body telling me it needed something I wasn't giving it.

The hardest part was that I was doing everything right. My nutrition was dialed in, I was training consistently, and I wasn't guessing. But my body wasn't responding the way that it normally would. So instead of guessing, I ran labs. My DHEA was low, my testosterone was low, and my thyroid was underperforming. That's when everything clicked. After a certain point, it's not about doing more. It's about supporting what your body is actually missing. And that's where supplements came in. Not as a shortcut, but as targeted support.

So the first one is creatine. And I think this is one of the most misunderstood supplements for women. When my strength started dropping, that was one of the biggest red flags. I wasn't progressing and everything felt harder than it should. Creatine is one of the most researched supplements that we have. It helps your muscles produce energy so that you can actually train with intensity. But what's interesting is the newer research on the brain side. There was a 2024 study that showed a high dose of creatine improved processing speed by over 20%, and even helped people function better under sleep deprivation for hours. So this is not just about lifting. This is about energy, output, and even mental clarity. And for women over 40, where both of those start to feel different, that matters.

And I have to address the bulky conversation because I hear it constantly. Creatine does not make you bulky. That is not how it works. Creatine helps your muscles produce energy more efficiently. It supports your ability to train with intensity. What you do with that intensity determines your results. So for women over 40 who are lifting to preserve muscle and stay lean, creatine is one of the most useful tools you have.

The second one is magnesium. This one hit me hard because even though I was sleeping, I wasn't recovering. And what most people don't realize is that around half of adults are magnesium deficient. That's even worse if you train or sweat regularly, because you lose more of it. Magnesium is involved in over 300 processes in the body, including sleep, stress regulation, and your recovery. So when you're low, it doesn't just show up in one place. It shows up everywhere.

For me, improving my magnesium was one of the first things that actually changed how I felt waking up. It wasn't immediate, but within a couple of weeks of being consistent with magnesium, I started actually feeling well rested in the morning. That transition from just logging hours of sleep to actually recovering during sleep, that was the shift. Stress was the second thing. I noticed I was not carrying the same tension throughout the day. The edge was softer. I was not wired at 10 at night when I should have been winding down.

With women, the pattern that I see the most is women who say that they cannot sleep, but what they mean is that they cannot stay asleep. They fall asleep fine, and then they are wide awake at 2 or 3 in the morning. Their mind is racing. That is a cortisol and magnesium issue almost every time. Once we address magnesium and support their stress response, that 2 a.m. wake-up starts to resolve. It is one of the fastest wins that I see.

The third is vitamin D with K2. Most people still think vitamin D is just for your bones, but it functions more like a hormone in the body. It affects your immune system, your mood, your metabolism, and even how your body handles inflammation. And here's what I see over and over again. When people actually test their levels, most of them are low. Even athletes. Low vitamin D is constantly linked with low energy, poor mood, and weaker overall health.

With women, I see low levels constantly. Women who train regularly, eat well, and spend time outside and still test low. Sun exposure alone is rarely enough, especially with sunscreen use and time spent indoors. And deficiency does not announce itself loudly. It shows up as fatigue you chalk up to stress, mood dips you attribute to hormones, and general flatness that just feels like getting older. Most women assume they are fine because nothing feels dramatically wrong. Testing is the only way to actually know. And once levels are corrected and paired with K2 and magnesium, the difference in energy and mood is one of the most noticeable shifts women experience. Do not guess on this one. Get the number.

Next is omega-3s. This is one of the highest return habits you can add, especially after 40. Most women are not getting enough EPA and DHA, and it shows. Taking around 2 grams per day has been shown to significantly improve your omega-3 index, which is associated with better cardiovascular health and even longer lifespan. For women dealing with inflammation, recovery issues, or brain fog, this is one of the simplest things that can make a noticeable difference.

The thing I noticed most with omega-3s was recovery. I was able to train at higher frequency without feeling beat up. Now that is a direct quality of life improvement when lifting is a non-negotiable part of your week. For women in perimenopause and menopause who are already dealing with brain fog as a symptom, omega-3s are one of the simplest and most evidence-backed things that you can add. The return on this one is generally high for how simple it is.

Now collagen. I want to be honest about this one. Your collagen production actually starts declining in your 20s and continues as you age, which is why people notice changes in their skin, their joints, and their recovery. But the way it gets marketed is very misleading. Collagen is not a magic fix for your skin. Where it actually helps is joint support, connective tissue, and recovery, especially if you are training consistently. If you are going to use it, around 10 grams daily is a common effective range, and pairing it with vitamin C can help support your collagen synthesis. And my honest take is collagen is not where I would start, and it is not what I would prioritize if your budget is limited. If you're choosing between collagen and creatine, choose creatine every time.

Next is a probiotic. Your gut plays a direct role in how your body processes hormones, how you digest food, and how you absorb nutrients. So you can be doing everything right, but if your gut is off, you're not getting the full benefit. Some real proof is Kris, a woman in her 50s who had spent years dealing with autoimmune issues, chronic inflammation, and digestive discomfort. No matter how healthy she ate, she still felt bloated, inflamed, and stuck. Once we focused on supporting her gut and improving her digestion, everything started to change. Her inflammation decreased, her body felt better, and she was finally able to see progress again.

The last one is ashwagandha. This one is about stress, because cortisol is one of the biggest drivers of belly fat after 40. If someone has thyroid issues, certain sensitivities, or is on specific medications, it is something that they need to be more careful with. So this is not a blanket recommendation, but for the right person, it can be powerful.

Stress for me was not always obvious stress. It was not like I was sitting there feeling anxious. It showed up physically. Tension that I carried in my shoulders and jaw without even realizing it. And restlessness at night. That wired but exhausted feeling that would not turn off. And for so many of the women that we work with, that chronic stress is exactly what is driving the belly fat that will not budge no matter what they do. Once I started taking it consistently, the physical tension started to ease. Sleep got deeper. The afternoon crashes became less severe. Cortisol management is not a soft wellness topic. For women over 40, it is directly connected to body composition, and I treat it that way.

Now, I want to say this because it matters. A lot of women are spending money on things that they don't actually need. Green powders, which are usually underdosed and not replacing real food. Biotin, unless you actually have a deficiency. Apple cider vinegar gummies, which are basically candy. Fat burners, which are just caffeine packaged differently.

The one that I see the most and have the strongest opinion on is fat burners. Women are spending $50, $60, sometimes even $80 a month on products that are almost entirely caffeine with a label designed to make you feel like science is working for you. The ingredient that is actually doing anything is a stimulant. Everything else is window dressing. If caffeine helps your workouts, drink coffee. Do not spend $80 on a product that is going to spike your cortisol, disrupt your sleep, and ultimately make your body composition harder, which is the exact opposite of what you paid for.

When you look at all of this together, it is actually simple. You do not need more supplements. You just need the right ones. What actually allowed my body to respond again was having a solid foundation. That's what most women are missing. And it's also why a lot of women feel like nothing is working even when they're trying.

So if you're watching this and you're thinking, okay, this makes sense, but I don't even know where to start with the nutrition side or how to put this all together, that's exactly what we focus on. You can check out the link in the description. That's where I break down how we approach this with our WarriorBabes and what it actually looks like when you put it into practice. And if you want, you can also drop your current supplement stack in the comments below. I'll read through those and I'll let you know straight up what's worth keeping and what's not. Thanks for watching this video and I'll see you guys in the next one.