7 Best Supplements and Vitamins for Women in their 20s

7 Best Supplements and Vitamins for Women in their 20s

One of the most common questions a nutritionist can be asked is: “What supplements should I take?”

And, whilst a healthy diet is always the best way to get the nutrients your body needs, there are some supplements and food blends that can be beneficial during each stage of life.

If you’re taking good care of yourself but still feeling fatigued or just not 100 percent, supplementation of certain vitamins and minerals could be what your body needs to thrive.

We asked Free Soul Nutritionist, Harriet Well, to break down the vitamins for women in their 20s that she often recommends, to help you feel your best.

1. Calcium

Calcium is essential for females in their 20s as this is the time when bone density is still increasing. 

Having enough calcium intake during this period can strengthen bones and reduce the risk of developing osteoporosis later in life. 

You should aim to consume 1000 mg of calcium per day, and calcium supplementation can be a helpful option if your diet alone is not enough. 

Calcium also plays a role in muscle function, nerve transmission, and blood clotting, so supplementation can also benefit physically active women or those with menstrual irregularities or heavy bleeding.

2. B-complex vitamins

B-complex vitamins are a group of water-soluble vitamins that play important roles in many bodily functions. 

The B-complex vitamins include thiamin (B1), riboflavin (B2), niacin (B3), pantothenic acid (B5), pyridoxine (B6), biotin (B7), folic acid (B9), and cobalamin (B12). 

These vitamins are involved in energy production, the metabolism of carbohydrates, proteins, and fats, and the maintenance of healthy skin, hair, and nails. 

Many women in their 20s have diets low in certain B vitamins, particularly folate and vitamin B12, which can increase the risk of developing anaemia or birth defects during pregnancy. B-complex vitamins also play a role in mood regulation and cognitive function.

3. Vitamin D

Vitamin D is necessary for the absorption of calcium and phosphorus, which are essential minerals for bone growth and maintenance. 

Vitamin D also plays a role in the immune system, helping to protect against infections and diseases. 

Females in their 20s may be at risk of vitamin D deficiency if they have limited sun exposure or have a low vitamin D diet. Having a deficiency can lead to bone loss, muscle weakness, and an increased risk of chronic diseases. 

The recommended daily intake of vitamin D for females aged 19-70 is 600-800 IU per day, but higher doses may be recommended for those who are at risk of deficiency. 

Blood tests may be done to determine a woman's vitamin D status and the appropriate dose of supplementation. 

It's important to note, vitamin D supplementation is recommended for everyone in the UK between October to March.

4. Magnesium

Magnesium is important for many bodily functions, including energy production, nerve function, and bone health. 

It is involved in over 300 biochemical reactions in the body and also plays a role in the regulation of heart rhythm, blood pressure, and blood sugar levels. 

Females in their 20s may be at risk of magnesium deficiency if they have a diet low in magnesium-rich foods or lose magnesium through sweating, such as during the summer months. 

Supplementation can reduce tiredness and fatigue. The recommended daily intake of magnesium for females aged 19-30 is 310 mg per day.

It is important to note that excessive magnesium intake can lead to adverse effects such as diarrhoea and stomach cramps.

5. Iron

One of the most important vitamins for women in their 20s is iron. This is because women in their 20s who experience heavy menstrual bleeding or have a low-iron diet are at risk of iron deficiency anaemia.  

Iron is necessary to produce haemoglobin, a protein in red blood cells that carries oxygen throughout the body. 

Iron deficiency anaemia can cause fatigue, weakness, shortness of breath, dizziness, headaches, and pale skin. 

Iron supplementation can prevent or treat iron deficiency anaemia, improving energy levels and overall health. Women should aim for 18 mg of iron per day, and a supplement may be necessary if they are not getting enough from their diet.

6. Protein

Increasing the amount of protein in your diet may be beneficial for all women, and meeting your body's requirements can be difficult through diet alone. Proper protein consumption is essential for supporting a robust immune system, hormone production, and the synthesis of enzymes and other essential molecules in the body. 

Although many women can obtain sufficient protein through a healthy, well-balanced diet that comprises protein-rich sources such as lean meats, fish, poultry, beans, and dairy products, some may find it challenging to meet their protein needs.

Protein foods, such as the Free Soul Vegan Protein Blend, can provide a convenient and effective way for women to increase their protein intake. 

Protein plays a key role in stabilising blood sugar levels by slowing down the digestion and absorption of carbohydrates. 

When we consume carbohydrates alone, they are quickly broken down into glucose, leading to a rapid spike in blood sugar levels. 

This spike is often followed by a subsequent crash, leaving us feeling tired and low in energy. 

When we include protein in our meals or snacks however, it slows down the digestion process, resulting in a slower and more controlled release of glucose into the bloodstream. This helps to prevent rapid blood sugar spikes and subsequent crashes, providing a more sustained and steady release of energy throughout the day.

7. Ashwagandha 

The final supplement on our list of best vitamins for women is ashwagandha. 

Studies show that ashwagandha is a natural stress reducer that can provide relief to women in their 20s who may be experiencing stress in their work or social life. 

Ashwagandha helps manage levels of cortisol, the stress hormone, in the body which is often produced in response to worry and anxiety. 

It’s usually recommended to break up ashwagandha doses into two (one in the morning, one at night). Not only does ashwagandha help to alleviate stress and balance hormones, it can also increase muscle strength, boost sexual drive and support a healthy heart.


While a healthy diet is always the best way to get the nutrients your body needs, supplements & food blends can be helpful in filling any gaps and there are some supplements that can be beneficial during each stage of life. For women in their 20s, calcium, B-complex vitamins, vitamin D, magnesium, iron and protein are some foods & supplements that may be worth considering. 

Written by Harriet Lidgard
Nutritionist (BSc) & Health Coach


**At Free Soul, your well-being is our priority, and although we pride ourselves on our expertise in women's health and wellbeing, it is important to acknowledge the individuality of each person. Features published by Free Soul are not intended to treat, diagnose, cure or prevent any disease, or replace the advice of your GP. We always recommend consulting with a healthcare provider if you encounter any health concerns, and we’ll always be here to support you so you’re never alone on your journey.