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Povzetek: Coenzyme Q10 (CoQ10) is a natural constituent of foods and is also often used in both functional foods and supplements. In addition, it is a common ingredient of cosmetics where it is believed to reduce the signs of skin ageing. However, the existing data about the effect of dietary intake of CoQ10 on skin parameters and condition are scarce. To gain an insight into this issue, we conducted a double-blind, placebo-controlled experiment with 33 healthy subjects. Our objective was to investigate the effects of 12 weeks of daily supplementation with 50 and 150 mg of CoQ10 on skin parameters and condition. Study was conducted with a water-soluble form of CoQ10 with superior bioavailability (Q10VitalVR ). While the results of some previous in vitro studies showed possible protection in UVB response, we did not observe significant changes in the minimal erythema dose (MED). On the other hand, the intake of CoQ10 limited seasonal deterioration of viscoelasticity and reduced some visible signs of ageing. We determined significantly reduced wrinkles and microrelief lines, and improved skin smoothness. Supplementation with CoQ10 did not significantly affect skin hydration and dermis thickness.
Ključne besede: coenzyme Q10, CoQ10, antioxidant, skin health, anti-ageing
Objavljeno v DiRROS: 27.11.2025; Ogledov: 101; Prenosov: 48
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Objavljeno v DiRROS: 26.11.2025; Ogledov: 106; Prenosov: 61
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Ključne besede: vitamin D, pomanjkanje, preskrbljenost, Slovenija
Objavljeno v DiRROS: 24.11.2025; Ogledov: 108; Prenosov: 57
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Ključne besede: vitamin D, dietary intake, serum 25-hydroxy-vitamin D, vitamin D deficiency, systematic reviews, Slovenia
Objavljeno v DiRROS: 24.11.2025; Ogledov: 117; Prenosov: 52
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Povzetek: Salt iodisation is considered a key public health measure for assuring adequate iodine intake in iodine-deficient countries. In Slovenia, the iodisation of all salt was made mandatory in 1953. A considerable regulatory change came in 2003 with the mandatory iodisation of rock and evaporated salt only. In addition, joining the European Union's free single market in 2004 enabled the import of non-iodised salt. The objective of this study was to investigate the extent of salt iodising in the food supply. We examined both the availability and sale of (non-)iodised salt. Average sales-weighted iodine levels in salt were calculated using the results of a national monitoring of salt quality. Data on the availability and sales of salts were collected in major food retailers in 2014. Iodised salt represented 59.2% of the salt samples, and 95.9% of salt sales, with an average (sales-weighted) level of 24.2 mg KI/kg of salt. The average sales-weighted KI level in non-iodised salts was 3.5 mg KI/kg. We may conclude that the sales-weighted average iodine levels in iodised salt are in line with the regulatory requirements. However, the regulatory changes and the EU single market have considerably affected the availability of non-iodised salt. While sales of non-iodised salt are still low, non-iodised salt represented 33.7% of the salts in our sample. This indicates the existence of a niche market which could pose a risk of inadequate iodine intake in those who deliberately decide to consume non-iodised salt only. Policymakers need to provide efficient salt iodisation intervention to assure sufficient iodine supply in the future. The reported sales-weighting approach enables cost-efficient monitoring of the iodisation of salt in the food supply.
Ključne besede: salt, sodium, iodine, sales, food supply, Slovenia
Objavljeno v DiRROS: 19.11.2025; Ogledov: 138; Prenosov: 62
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