A Properly Balanced Reduction Diet And/Or Supplementation Solve the Problem with the Deficiency of These Vitamins Soluble In
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nutrients Article A Properly Balanced Reduction Diet and/or Supplementation Solve the Problem with the Deficiency of These Vitamins Soluble in Water in Patients with PCOS Małgorzata Szczuko 1,* , Iwona Szydłowska 2 and Jolanta Nawrocka-Rutkowska 2 1 Department of Human Nutrition and Metabolomics, Pomeranian Medical University in Szczecin, Broniewskiego 24, 71-460 Szczecin, Poland 2 Department of Gynecology, Endocrinology and Gynecological Oncology, Pomeranian Medical University in Szczecin, Unii Lubelskiej 1, 71-256 Szczecin, Poland; [email protected] (I.S.); [email protected] (J.N.-R.) * Correspondence: [email protected]; Tel.: +48-91-4414810 Abstract: Polycystic ovary syndrome (PCOS) is an increasingly common problem for women in the reproductive age throughout the entire world. A reduction diet with a low glycaemic index (GI) has proved to support the treatment of PCOS. The aim of the study was to analyse the influence of the diet on the level of vitamins soluble in water. The study included 55 women, 40 of which suffered from PCOS (identified by means of the Rotterdam Criteria) and 15 healthy women of the Caucasian race. The level of vitamins before and after the dietary intervention was measured. The diet was a reduction diet with a reduced glycaemic index (GI). Biochemical analyses were made on the basis of liquid chromatography—Infinity 1260 Binary liquid chromatography (LC) Agilent Technology. Citation: Szczuko, M.; Szydłowska, The level of vitamins in the serum was analysed together with the consumption before and after the I.; Nawrocka-Rutkowska, J. A dietary intervention. A higher level of vitamin C in the plasma was observed before and after the Properly Balanced Reduction Diet dietary intervention in the PCOS group in comparison to the control group despite the lower intake and/or Supplementation Solve the of this vitamin in the PCOS group. The remaining vitamins were at a comparable or lower level (B1, Problem with the Deficiency of These B3, B5, B6 and B12). After the dietary intervention, only B1 and B9 were at a clearly lower level (a Vitamins Soluble in Water in Patients trend of p = 0.093 and p = 0.085). A properly balanced reduction diet with reduced GI improves the with PCOS. Nutrients 2021, 13, 746. supply of vitamins in women with PCOS. An additional recommendation should be the additional https://doi.org/10.3390/nu13030746 supplementation of B1, niacinamide and the combination of folates with inositol. The level of vitamin C in the plasma may not be a good marker of its supply in the PCOS group. Academic Editor: Konstantinos Tziomalos Keywords: PCOS; vitamins; thiamine; folates; niacin; ascorbic acid Received: 25 January 2021 Accepted: 22 February 2021 Published: 26 February 2021 1. Introduction Publisher’s Note: MDPI stays neutral Polycystic ovary syndrome (PCOS) is diagnosed on the basis of at least two out of with regard to jurisdictional claims in three Rotterdam Criteria from 2003 [1]: published maps and institutional affil- - hyperandrogenism, iations. - or its clinical manifestations, such as androgenic baldness, hirsutism, - menstruation and ovulation disorders, - enlarged (ovary volume > 10 cm3) or polycystic ovaries (at least 12 follicles) visible in an ultrasound image. Copyright: © 2021 by the authors. When it comes to metabolism, PCOS is characterised by disorders in carbohydrate Licensee MDPI, Basel, Switzerland. This article is an open access article metabolism, which is accompanied by insulin resistance [2]. Furthermore, the fat build-up distributed under the terms and of internal organs, particularly, the presence of NAFLD, is the domain of women [3,4]. A conditions of the Creative Commons study published in 2017 proved that the implementation of a reduction diet combined Attribution (CC BY) license (https:// with physical activity had an influence on the reduction in body mass in patients and creativecommons.org/licenses/by/ on the improvement of biochemical parameters, mainly of the lipid profile, which is 4.0/). often disturbed [5]. Therefore, it seems that PCOS is a syndrome that includes numerous Nutrients 2021, 13, 746. https://doi.org/10.3390/nu13030746 https://www.mdpi.com/journal/nutrients Nutrients 2021, 13, 746 2 of 10 disorders that originate in metabolic defects leading to the development of obesity. The presence of the symptoms depends on the effective functioning of the entire organism, while the dysfunction of ovaries is a consequence of metabolic disorders. Women with PCOS are also in the risk group of developing type 2 diabetes, which makes more sensitive to insulin. This is why metformin is often used in the treatment of PCOS. Unfortunately, this medicine has an influence on the reduction in vitamin B12 levels after just a few months of intake and is accompanied by an increase in the concentration of homocysteine [6]. Moreover, the inability to get pregnant and random stillbirth in women with PCOS may also be a consequence of the clinical deficiency of B12 [7]. In addition, in patients with hyperhomocysteinemia, stillbirth was observed more frequently than in women with correct homocysteine concentration [8]. The authors have a hypothesis that vitamins soluble in water that have antioxidant properties and participate in metabolic transformations as regulators may be supplemented together with a reduction diet, thus being beneficial in the treatment of PCOS. In the available literature, we did not find information on the influence of a balanced reduction diet on the supplementation of nutritional deficiencies with regards to vitamins soluble in water in women with PCOS. We were interested whether the supply combined with a properly balanced reduction diet proves sufficient to negate the differences with the control group, whether this type of diet should also additionally include supplementation and if so—what vitamins should be selected. We were interested whether the supply with an appropriately balanced reduction diet is enough to eliminate the difference in comparison to the control group or whether this type of diet should also include supplementation with specific vitamins (which ones?). We decided to check whether the reduction diet with a low glycaemic index (GI), but rich in vitamins can improve the status of vitamins soluble in water in women with PCOS. To do this, we compared the results to those of women with PCOS who did not decide to change the diet, as well as to healthy women with excluded PCOS. 2. Material and Methods The study was approved by the Bioethics Committee of the Pomeranian Medical University in Szczecin and was conducted in accordance with the provisions of the Decla- ration of Helsinki, institutional policy, and national law. All study participants consciously expressed their consent to participate in the study. 2.1. Study Group In total, 55 women of the Caucasian race participated in the study—40 patients aged 32.52 ± 7.12 years with polycystic ovary syndrome (PCOS-I) diagnosed on the basis of the Rotterdam criteria: 2 out of 3 of the following criteria—rare ovulations or lack of ovulations and/or biochemical symptoms of hyperandrogenism and/or image of polycystic ovaries in USG (Ultrasound Voluson 730, GE, Switzerland). The control group (CG) consisted of 15 women aged 31.23 ± 6.3 years and the correct BMI of 22.1 ± 1.5 without PCOS. All par- ticipants of the study were subjected to the measurements of anthropometric bioelectrical impedance (Akern, BIA-101, Firenze, Italy). Only 18 women with polycystic ovary syndrome who followed the recommendations and diet were qualified for stage 2 of the study (PCOS-II). The verification was conducted on the basis of a nutritional interview and body mass reduction—a minimum of 2 kg in 3 months. Lastly, the measurement of the content of vitamins in the plasma was conducted and compared between the groups in accordance with Figure1. All of the women were in the childbearing age and their anthropometric parameters are presented in Table1. 2.2. Quantitative Dietary Assessment The following methods were used to gather data on product consumption: food diary referring to the last 3 days at the start of the study. The focus was on a one-day food record from the last 24-h dietary interview when the patient returned for a control visit. The Nutrients 2021, 13, 746 3 of 10 data collected from the diaries and interviews included the following: quantity, way of Nutrients 2021, 13, x FOR PEER REVIEW preparation, the time of consumption of each meal and the ingredients that were used. 3 of 10 The menus were taken on Thursday and Friday as well as on Saturday or Sunday. Using computer software Dieta 6D (National Food and Nutrition Institute, Warsaw, Poland), we analysed a total of 162 dietary menus of women suffering from PCOS. Figure 1. FigureStudy 1. design.Study design. Table 1. The characteristics of the study group and the control group. Table 1. The characteristics of the study group and the control group. Parameter PCOS Patients Control Group (CG) p ParameterAge (year) PCOS 32.52 ± Patients7.12 30.23Control± 6.31 Group (CG) NS p Age (year)Height (m)32.52 1.67 ± 0.06± 7.12 1.68 ± 0.0630.23 ± 6.31 NS NS HeightBody (m) mass (kg) 82.751.67± ±15.6 0.06 62.76 ± 6.671.68 ± 0.061 × 10−6 NS 2 −6 Body massBMI (kg) (kg/m ) 82.7529.65 ± ±6.76 15.6 22.22 ± 1.5262.76 ± 6.671 × 10 1 × 10−6 Fat mass (%) 39.54 ± 8.08 25.65 ± 3.96 × −6 BMI (kg/m2) 29.65 ± 6.76 22.22 ± 1.521 10 1 × 10−6 Waist circumference (cm) 99.87 ± 15.65 74.75 ± 5.01 1 × 10−6 Fat mass (%) 39.54 ± 8.08 25.65 ± 3.96 1 × 10−6 Hip circumference (cm) 109.45 ± 8.96 95.85 ± 4.88 1 × 10−6 −6 Waist circumferenceWHR (cm) 99.87 0.92 ± ±0.08 15.65 0.78 ± 0.0374.75 * ± 5.011 × 10−6 1 × 10 Hip circumferenceWHR—waist-to-height (cm) ratio; BMI—body109.45 mass index; ± 8.96 *—it does not seem necessary95.85 to ± apply 4.88 WHR in patients 1 × 10−6 with correct body mass; NS—no statistically significant differences.