There are so many top 10 lists, hormone-panic content, get-skinny-fast claims, and pretty pastel bottles promising “glow from within” on any search for supplements for women. But I personally despise the pretty pastels and fluffy claims from women’s health brands.
So instead of all that marketing, I’m going to share the three layers that actually work: the foundation most women can benefit from, the additions that are unique to your current era, and the targeted picks that match your personalized goals.
From my POV as a registered dietitian, supplements should be used as gap-fillers. You can’t take shortcuts on food, sleep, training, or stress management. But you can “supplement” your needs with what I’ll cover in this guide.
Key Takeaways
Most women can benefit from taking what I call the “foundational five”: a women’s multivitamin, vitamin D3 with K2, omega-3s, magnesium, and protein (if intake from food isn’t enough).
The most common nutrient gaps for women are iron, calcium, folate, B12, and choline. A high-quality women’s multivitamin should address most, if not all, of these gaps.
Match your supplement choice to your personalized needs: life stage and goals. Perimenopause, training blocks, and weight or fat loss each call for different additions to the foundation.
When possible, women’s-specific multivitamin formulas are preferred. They take iron, folate, and B vitamins into consideration.
Supplements support the basics, but won’t fix your problems. A combo of sleep, diet, training, and stress management will move the needle more than any supplement.
As always, consult with your healthcare provider before starting any new supplement or nutrition program, especially if you are pregnant, nursing, taking medication, or have a medical condition.
In this Article:
- The Foundational Supplements Every Woman Should Consider
- Women-Specific Nutrients that Often Fall Short
- Supplements for Women in Their 20s and 30s
- Supplements for Perimenopause and Menopause
- Supplements for Hair, Skin, and Nails
- Supplements for Training and Recovery
- Supplements for Fat Loss and Body Composition
- How to Choose a Quality Women’s Supplement
The Foundational Supplements Every Woman Should Consider
The “foundational five” that every woman should consider are: a women’s multivitamin, vitamin D3 (paired with K2), omega-3s, magnesium, and protein if intake isn’t always consistent.
A Women-Specific Multivitamin
Think of a multivitamin as the floor, not a ceiling. If you have a cheat day, it’ll cover your bases.
And if you’re wondering what to look for in a women's multivitamin, iron, folate, and B vitamins are your basics. Women’s-specific multis are typically built around your personalized needs.
If you’re just starting out, I personally can’t recommend M-Factor Goddess enough. It’s formulated thoughtfully with most of the micronutrients women often fall short on, plus other clinically dosed nutrients.
Vitamin D3 + K2
Vitamin D3 can help your body absorb calcium and plays various roles in your body.* Vitamin K2 works to direct calcium into your bones instead of your arteries, by working together with vitamin D. So, the best vitamin D3 supplement should consider the addition of vitamin K2.
However, vitamin D inadequacy is widespread, especially for women who work indoors. For context, the NIH considers serum levels at 30-50 nmol/L inadequate and under 30 nmol/L deficient. If you’re unsure about your levels, check with your provider to get bloodwork done.
Omega-3 Fatty Acids
Omega-3s are essential fatty acids your body needs but doesn’t produce on its own. The Adequate Intakes (AIs) for omega-3s are 1.6 grams and 1.1 grams for men and women, respectively.
If you eat fatty fish 2-3 times a week, you may not need an omega-3 supplement. Otherwise, supplementation (examples: fish oil, krill oil, or algal oil) can be helpful.
Magnesium
Magnesium is a mineral that’s involved in over 300 enzymatic reactions in your body. It’s found in green leafy vegetables, legumes, seeds, nuts, and whole grains.
Despite its importance and the benefits of magnesium that are already well-documented, nearly half of U.S. adults consumed less than the recommended magnesium intake from food in 2005-2006.
Magnesium glycinate (or bisglycinate, which is also a chelated form) is well-tolerated due to its bioavailability and is useful to take in the evening.
Protein
Well, this is a macronutrient, not a supplement, but supplementing with protein powder could help you meet your targets more seamlessly. Many of my female clients often fall short, especially during breakfast.
Aim for 1 gram per pound of goal body weight per day, split across multiple meals. Or, add a scoop of protein to a smoothie or your oats/yogurt.
Women-Specific Nutrients that Often Fall Short
Nutrients that many women often under-consume are iron, calcium, folate, vitamin B12, and choline. Most, if not all, are covered in a quality women’s-specific multivitamin.
Iron, Especially For Menstruating Women
Iron loss during that “time of the month” can put women at higher risk for lower iron stores (i.e. ferritin levels). That’s where iron supplementation for women could help, but definitely ask your provider for a ferritin test first.
Calcium and The Postmenopausal Bone Story
Calcium is important because it supports bone health, especially during perimenopause and postmenopause. Adult women need 1,000 mg of calcium daily through age 50, then 1,200 mg (higher!) after that.
Many women can meet this through food: dairy, leafy greens, and fortified foods are helpful. But if you don’t consume dairy or are vegan, your options get limited without supplements.
Folate (and Folic Acid) Before & During Pregnancy
Women trying to conceive or who are pregnant need 600 mcg of folate daily, with at least 400 mcg from folic acid. Folic acid helps your body make new cells and, according to the CDC, has been shown to help prevent neural tube defects in babies.
Prenatal supplements are designed around this requirement. See what to know about prenatal vitamins for that full picture.
B12: Why Absorption May Decline with Age
Vitamin B12 is important since it supports red blood cell formation, brain health, and energy metabolism. However, B12 absorption may become less efficient with age.
So who needs vitamin B12? By the age of 50, the NIH recommends that most women get their B12 through fortified foods or supplements. Vegans and vegetarians may also need to look for fortified foods or supplements, since B12 occurs almost exclusively in animal-based foods.
Choline, The Underrated Nutrient
According to the NIH, most people in the United States consume less than the Adequate Intake (AI) for choline. And over 90% of pregnant women consume less choline than the AI, which is even more concerning.
Choline is important because it supports liver function, brain health, and nerve signaling. It's found in foods like eggs and beef. If neither regularly appears on your dinner table, consider a multivitamin that contains choline.
Supplements for Women in Their 20s and 30s
Women in their 20s and 30s could benefit most from foundational supplements that fill gaps and support their training and lifestyle.
Foundational Stack for Active Women
Whether you lift, run, or chase littles around the house, your personalized nutrient needs may be higher than average. Start with the basics (women’s multivitamin, D3, omega-3, magnesium, protein) and add creatine and electrolytes as needed.
In addition to supplements, this is the time to build the habit of resistance training if you don’t already. Your bones build most of their density early and peak by your early 20s, then hold steady into your 50s. That’s why women should lift weights in their 20s and 30s for long-term skeletal health and to protect the bones you’ve built.
If You're Trying to Conceive
Many healthcare providers recommend starting a prenatal before conception. So, if you’re trying to have a baby, ask your OB when the right time is for you to start. Folate, iron, choline, and iodine are essential nutrients for conception. Check with your OB for specifics.
Adding Creatine for Training
Women often skip creatine because they think it’ll make them bulky. However, creatine is one of the most studied supplements in sports nutrition, and evidence in women is strong across the lifespan.
Supplements for Perimenopause and Menopause
Menopause is a natural life stage (and transition!), not a disease. The best supplements for menopause should help support your common midlife concerns around bone health, stress, sleep, and joint health.
Bone and Joint Support
Estrogen decline can accelerate bone loss in perimenopause. As such, the non-negotiables here are calcium, D3 with K2, magnesium, protein, and, of course, lifting weights.
Collagen peptides can also help support connective tissue health. For joint-specific concerns, head over to learn about supplements for menopause joint pain.
Hormonal Balance and Stress
Ashwagandha is the most studied adaptogen for stress. This meta–analysis showed that 8 weeks of ashwagandha supplementation reduced stress and cortisol levels.
A typical ashwagandha dosage ranges from 300 to 600 mg taken daily. Avoid ashwagandha if you’re taking thyroid meds or pregnant. Check with your provider before starting any supplement.
Sleep and Recovery
Perimenopause can take a toll on sleep quality. While more research is needed, magnesium was associated with falling asleep faster vs. a placebo.
Or, if you think your sleep disruption is anxiety-related, L-theanine and ashwagandha are also other options to consider for supplements for anxiety.
Supplements for Hair, Skin, and Nails
Collagen peptides, adequate biotin intake if deficient, and vitamin C form the typical hair, skin, and nails support stack. Typically, you’ll want to give a stack 8 to 12 weeks for results.
Collagen Peptides: The Main Building Block
Collagen peptides supply the amino acids that support your hair, skin, and nails.
The effects of collagen for skin are real, but modest. This study (among many others) supports the effects of hydrolyzed collagen on skin hydration and elasticity over 8 weeks.
Biotin and B-Vitamins
Seeing huge doses of biotin is fairly common in some of the best hair growth supplements. However, it’s likely only helpful if you have a deficiency. Usually, a women’s multivitamin with the full B-vitamin complex should cover your bases.
Vitamin C as a Collagen Cofactor
Vitamin C is a water-soluble vitamin, so any extra you take is just expensive pee. Most women actually already meet the RDA through their diet. Just make sure you’re getting enough fruits and veggies since vitamin C plays a role in collagen synthesis.
Supplements for Training and Recovery
For training and recovery, athletes can benefit from taking creatine monohydrate, getting enough protein, electrolytes, and pre-workout if energy levels are a concern.
Creatine: Yes, Women Too!
Creatine monohydrate is one of the most extensively studied forms of creatine. And good news, ladies: there are many benefits of creatine for women.
Once saturation is reached, 3-5 grams of creatine monohydrate per day can help maintain elevated muscle creatine stores for women.
Protein for Muscle and Recovery
For women who take training seriously, I generally recommend a protein intake closer to 1 gram per pound of goal body weight as a Registered Dietitian.
This can be done through either aiming for 20 to 30 grams of lean protein per meal and 10 to 15 grams per snack, or supplementing as needed.
Pre-Workout, If Energy is an Issue
If you need a push after a long day, a solid pre-workout for women could help. But be honest about your tolerance: if you can’t sleep well after an afternoon session, check out stim-free options or cut the dose in half.
Electrolytes for Hydration
Water alone might not cut it if you sweat a lot or train in hot weather. Focus on replenishing your sodium and potassium intake to start. Try to avoid any sugary sports drinks.
Supplements for Fat Loss and Body Composition
For body composition changes that stick, the most useful supplement is protein. You could also add a thermogenic if you need some support with energy and adherence.
Why Protein Matters Most in a Deficit
When you’re in a calorie deficit, your body is more likely to break down muscle for energy. Adequate protein intake, along with resistance training, may help preserve that muscle.
A lot of women I work with who hit the higher end of their prescribed protein range tend to lose more fat and retain muscle more than those who don’t.
Thermogenic Fat Burners: When They Help
Fat burners aren’t a substitute for doing the work. But a thermogenic fat burner can support your goals alongside diet and training. Read the label carefully and watch caffeine levels if you’re already taking other supps with caffeine.
What to Avoid
Skip any products that overpromise. If it’s too good to be true, it probably isn’t legit. Some common claims I see are rapid weight loss and spot reduction (especially around belly fat).
How to Choose a Quality Women’s Supplement
Look for third-party testing, disclosure of ingredients and doses, and prioritized nutrients for your needs as a woman.
Third-Party Testing Certifications
I typically recommend looking for credible third-party marks. Examples include NSF Certified for Sport, Informed Sport, and USP Verified. These verify that what’s on the label is what is in the bottle and that it’s free of banned substances for sports.
Clear, Honest Dosing
The biggest red flags in women’s supplements? Proprietary blends. That just means the manufacturer won’t tell you how much of each ingredient is in there.
Quality brands list every active ingredient with its dose, so you know exactly what you’re taking.
When to Choose a Women-Specific Formula
The question of whether women can take a men's multivitamin comes up quite a bit with my clients. And the answer is a surprising yes.
However, women often need more iron, folate, and, oftentimes, biotin and choline. Iron is a biggie: women often need 18 mg daily, compared to 8 mg for men.
M-Factor Goddess is an excellent choice among 1st Phorm women's multivitamins. It provides the nutrients women need, like those I’ve described above.
Frequently Asked Questions
What supplements do women really need every day?
The core daily supplements for women are a women's multivitamin, vitamin D3 (ideally with K2), omega-3 fatty acids, and magnesium, plus protein if you're not hitting your target through food. These cover the gaps most women run into day to day; everything beyond them is layered on for your specific life stage or goal.
Should women take a multivitamin?
Many women can benefit from a multivitamin. Think of it as insurance for the days that you don’t follow your diet 100%. It can’t replace a good diet but can help close small gaps that add up.
What vitamins are best for women over 40?
For my older female clients over 40, I typically recommend that they look for nutrients that support bone health (calcium & vitamin D), as well as omega-3s, magnesium, B12, and folate.
Do active women need different supplements than men?
Active women may need more iron and folate than men. A women’s-specific multivitamin could help with that difference.
Are supplements really necessary if I eat well?
You may not need as many supplements if your diet is nutrient-dense. Even then, I usually still recommend vitamin D and omega-3s for women who don’t get regular sun or eat fatty fish weekly. You could also check with your doctor about bloodwork tests.
What time of day should women take their supplements?
For fat-soluble vitamins (D, E, K, A) and omega-3s, take with a meal that includes fat. For vitamin C, ideally take it separately from calcium or coffee. For magnesium glycinate, in the evening, since it promotes relaxation. But taking them regularly beats perfect timing.
Conclusion
The right supplement should definitely cover the basics, but also be personalized to your life stage and goals. Build the base first: a women’s multivitamin, vitamin D3 with K2, omega-3, magnesium, and adequate protein intake. Then layer in what your life’s chapter requires, whether that’s creatine for training, collagen for skin, or ashwagandha for stress.
If you’re looking for a foundational option as you get started, our women's multivitamin formula helps plug any nutrient gaps women often face. For other great options, check out 1st Phorm women's multivitamins to find what best fits your personalized needs.
Whatever you go with, don’t forget the foundations: diet, training, sleep, and stress management. Supplements can make those changes easier to stick with, but don’t use them as a bandage for poor habits.
Have any questions in the meantime? Please don't hesitate to reach out. We have a full team of NASM Certified Personal Trainers and Nutrition Coaches right here in St. Louis, Missouri.
Just give us a call at 1-800-409-9732 or send us an email at CustomerService@1stPhorm.com. We're available Monday through Friday from 6 AM to 8 PM Central and Saturday & Sunday from 9 AM to 7 PM Central.
We’re happy to help in any way we can to support your training goals!
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
