We partnered with Vidacare, a health diagnostics company that offers personalised health screening and gave three women, who took SISTERLY for three months, before-and-after blood testing. This was a way to gain some initial insight into how supplementing daily with SISTERLY can support our overall nutrient status.
The Test: What We Measured
We chose the Executive Female Panel from Vidacare, one of the most comprehensive private health screens available. It measures over 150 biomarkers across a range of systems relevant to female wellbeing, including nutrient status, cardiovascular health, hormone balance, immune and inflammatory markers, liver, kidney, and bone health, glucose metabolism and insulin response plus antioxidant status and oxidative stress.
These kinds of comprehensive functional health tests aim to flag up what’s wrong, reveal what’s working well and provide insights on what could use a little more support.
Test Results
Each woman’s test results reflected her personal physiology and life stage. One woman, in her late 20s, had no major complaints but discovered that her oestrogen levels were abnormally high, perhaps explaining her persistent PMS, skin issues, and difficulty with weight regulation. Another, perimenopausal, discovered her red blood cells and immune defence was under strain. The third, postmenopausal, was surprised to find her immune markers were low, pointing to subtle immune fatigue. She also had higher-than-expected cardiovascular risk markers which could have gone undetected without the testing.
Bioactive is Best
While a small sample size, the results, reviewed by SISTERLY’s Food Scientist and Nutritional Therapist, Susie Perry, showed noticeable improvements for key nutrient status.
These results were an encouraging reflection of the decision to formulate SISTERLY using nutrients in their most bioavailable and biologically active forms. That means methylated B vitamins that bypass common genetic conversion issues, a patented form of folate instead of synthetic folic acid for more effective cellular uptake, and chelated minerals that are better absorbed through the gut lining than their cheaper, inorganic counterparts.
Folic Acid and B12
All three women saw significant improvements in their folic acid status and two women saw considerable improvements in B12 status. Both these nutrients are essential nutrients in the SISTERLY formula, working synergistically to support energy, mood and hormonal health. Together, they contribute to healthy red blood cell formation, DNA synthesis, and the regulation of homocysteine, a compound linked to cardiovascular and cognitive health when elevated. Vitamin B12 helps maintain optimal neurological function and may help reduce tiredness and brain fog, particularly during times of hormonal fluctuation. By including these nutrients in their methylated and bioactive forms, SISTERLY ensures better absorption and cellular impact.
Magnesium
Levels of magnesium also increased for all three women. Magnesium is an essential mineral involved in over 300 enzymatic reactions in the body, playing a crucial role in energy production, muscle function, stress regulation, and hormonal balance. It supports the nervous system, helps maintain steady blood sugar levels, and contributes to restful sleep and a calm mood, making it especially beneficial during times of physical or emotional stress. SISTERLY includes magnesium lactate, a highly bioavailable and gentle form that is well absorbed and less likely to cause digestive upset compared to other forms like magnesium oxide. This makes it ideal for daily use, particularly for women with sensitive digestion or increased magnesium needs due to stress, exercise, or hormonal changes.
Vitamin D
Vitamin D is a vital nutrient for immunity, bone strength, mood regulation, and hormone balance, so it’s especially important for women across all life stages. It helps the body absorb calcium and works in tandem with vitamin K to support strong bones and teeth, while also playing a key role in regulating the immune system and reducing inflammation. Low levels of vitamin D have been linked to fatigue, low mood, and increased risk of chronic illness.
All three women observed increased levels of vitamin D after supplementing for 3 months with SISTERLY, important given that deficiency is widespread in the UK and Ireland, particularly in winter. SISTERLY is formulated with vitamin D3 (cholecalciferol), the most bioavailable and effective form of vitamin D. Unlike D2, which is plant-derived and less efficiently absorbed, vitamin D3 is the same form naturally produced by the skin in response to sunlight and has been shown in studies to raise and maintain serum vitamin D levels more effectively compared to other forms.
Takeaways From The Test
This was a very small sample selection to gain some initial insights and there were some promising results which we are keen to explore further. Subjectively, the women all said they had more energy and were feeling so much better in themselves (See the results of our previous 3-month trial with 50 women). We also learned that:
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Quality matters: the forms of each nutrient matter - bioavailable and biologically active forms are well absorbed.
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Consistency counts: replenishing nutrient reserves takes time, taking your supplements every day matters.
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Testing provides perspective: and can reveal issues long before symptoms arise.
We’re not suggesting every woman needs to run out and get a full diagnostic blood panel. But we do think that a one-off test can be a powerful tool for spotting potential risks early and giving you a personalised foundation to work from.
Whatever is uncovered, SISTERLY is designed to provide foundational support for energy, hormones, immune function, and mental resilience. You don’t need to wait until something goes wrong to take your health seriously. SISTERLY is about proactive nourishment, small wins that add up, and empowering women to feel their best, inside and out.
If you’d like to try your own health screening, VidaCare is offering 10% off with code SISTERLY10 at vidacare.ie.
