In recent years, NHS doctors have shed increasing light on the ways that Vitamin D can be used to boost a person's wellbeing - especially during the cold, dark winter months.
Apparently, however, anyone hoping to secure the ultimate 'glow-up' this year, or hoping to improve their general health, needs to approach these currently viral supplements with caution.
The warning comes in light of four symptoms having reportedly emerged among some patients who've been prescribed these pills, that are said indicate a person's body isn't taking to them very well, or that they're consuming too much.
For those unfamiliar with the benefits of Vitamin D, this specific nutrient is famed for its ability to regulate the amount of calcium and phosphate in the body, which are both vital when it comes to maintaining healthy bones, teeth, and muscle health.
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It also wards off bone deformities, like rickets, as well as painful conditions, including osteomalacia.
The easiest way to soak up this nutrient is from the sun, which poses quite the issue for anyone living in the northern hemisphere, with sunlight being something or a rarity between October and March.
As such, many are turning to Vitamin D supplements to up for the nutrition they're missing out on over the winter, with the British government recommending UK residents taking a daily vitamin of 10mg during this period.
"From October to March we can’t make enough vitamin D from sunlight, so to keep bones and muscles healthy, it’s best to take a daily 10 microgram supplement of vitamin D," a spokesperson for the NHS emphasised recently. "You can get vitamin D from most pharmacies and retailers."
As we say, however, many medics have recently argued that this shouldn't be a blanket rule, claiming some patients have reported experiencing four indicators that the supplements are having adverse effects on their health.
Biomedical scientist Tobias Mapulanga explained: "As the NHS encourages vitamin D in winter, many people are reaching for bottles in the darker months and accidentally overshooting, then blaming the fallout on seasonal bugs, when constant thirst and needing the loo more often, queasiness, tummy pain or constipation, headaches or brain fog, and new aches or cramps appear soon after increasing your intake or adding sprays or gummies, that points to a supplement backfiring.
"The stakes are clear: the right amount supports you, but doubling up can turn a well-meant routine into feeling worse rather than better."
Constantly needing a wee, but still feeling thirsty
If you find some weeks after starting to take Vitamin D supplements that you're needing to urinate more often, and constantly feel thirsty, it could be an indictor that you're taking too much then you need.
This is because Vitamin D has the potential to disrupt both fluid and salt balance, which came leave a person both parched, but needing the loo.
It is recommended in these cases, to take absolutely no more than the prescribed 10mg, and to always keep water close by.
Feeling nauseous
Enduring general sickness, burping more than you usually would, or suffering from a sour stomach could also be a sign that something is wrong.
This could be because some variations of Vitamin D could contain sweeteners or flavourings that throw off a person's stomach acid levels, and trigger irritation. It's recommended in these cases to either take your supplement with a main meal, and switch from taking sprays of gummies to tablets.
Achy bones and muscles
If you notice you're cramping more often, or just feeling generally much more fatigued that usual, it could be a sign that Vitamin D supplements aren't for you. An excessive amount of this nutrient can upset the minerals that your muscles rely on, and this, mixed with potential dehydration, could cause muscles to cramp.
It's recommended to adjust your amount in these cases, as well as to drink a large glass of water with meals, and add things like yoghurt, leafy greens, beans and bananas into your diet.
Struggling to focus
Has your brain felt foggier than usual since you started taking Vitamin D supplements? If so, again, it could indicate you've taken too much.
High doses of this specific nutrient can cause a person's calcium levels to surge, with additives like sweeteners also having the potential to muddle their thinking. In these cases, it is recommended that a person takes their pill with food, or to choose a product listing only cholecalciferol as a bulking agent.
Rhianna Benson