scholarly journals Dietary Acid-Base Balance in Adolescent Sprint Athletes: A Follow-up Study

Nutrients ◽  
2011 ◽  
Vol 3 (2) ◽  
pp. 200-211 ◽  
Author(s):  
Dirk Aerenhouts ◽  
Peter Deriemaeker ◽  
Marcel Hebbelinck ◽  
Peter Clarys
Keyword(s):  
Acid Base Balance ◽  
Acid Base ◽  
Follow Up Study ◽  
Base Balance ◽  
Dietary Acid

Higher Dietary Acidity is Associated with Lower Bone Mineral Density in Postmenopausal Iranian Women, Independent of Dietary Calcium Intake

2014 ◽  
Vol 84 (3-4) ◽  
pp. 0206-0217 ◽  
Author(s):  
Seyedeh-Elaheh Shariati-Bafghi ◽  
Elaheh Nosrat-Mirshekarlou ◽  
Mohsen Karamati ◽  
Bahram Rashidkhani
Keyword(s):  
Calcium Intake ◽  
Dietary Calcium ◽  
Dietary Calcium Intake ◽  
Dietary Intakes ◽  
Iranian Women ◽  
Acid Base Balance ◽  
Mineral Density ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid

Findings of studies on the link between dietary acid-base balance and bone mass are relatively mixed. We examined the association between dietary acid-base balance and bone mineral density (BMD) in a sample of Iranian women, hypothesizing that a higher dietary acidity would be inversely associated with BMD, even when dietary calcium intake is adequate. In this cross-sectional study, lumbar spine and femoral neck BMDs of 151 postmenopausal women aged 50 - 85 years were measured using dual-energy x-ray absorptiometry. Dietary intakes were assessed using a validated food frequency questionnaire. Renal net acid excretion (RNAE), an estimate of acid-base balance, was then calculated indirectly from the diet using the formulae of Remer (based on dietary intakes of protein, phosphorus, potassium, and magnesium; RNAERemer) and Frassetto (based on dietary intakes of protein and potassium; RNAEFrassetto), and was energy adjusted by the residual method. After adjusting for potential confounders, multivariable adjusted means of the lumbar spine BMD of women in the highest tertiles of RNAERemer and RNAEFrassetto were significantly lower than those in the lowest tertiles (for RNAERemer: mean difference -0.084 g/cm2; P=0.007 and for RNAEFrassetto: mean difference - 0.088 g/cm2; P=0.004). Similar results were observed in a subgroup analysis of subjects with dietary calcium intake of >800 mg/day. In conclusion, a higher RNAE (i. e. more dietary acidity), which is associated with greater intake of acid-generating foods and lower intake of alkali-generating foods, may be involved in deteriorating the bone health of postmenopausal Iranian women, even in the context of adequate dietary calcium intake.

scholarly journals Dietary acid–base balance and intake of bone-related nutrients in Cambridge teenagers

2004 ◽  
Vol 58 (11) ◽  
pp. 1462-1471 ◽  
Author(s):  
C J Prynne ◽  
F Ginty ◽  
A A Paul ◽  
C Bolton-Smith ◽  
S J Stear ◽  
...  
Keyword(s):  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid

scholarly journals Urine pH is an indicator of dietary acid–base load, fruit and vegetables and meat intakes: results from the European Prospective Investigation into Cancer and Nutrition (EPIC)-Norfolk population study

2008 ◽  
Vol 99 (6) ◽  
pp. 1335-1343 ◽  
Author(s):  
Ailsa A. Welch ◽  
Angela Mulligan ◽  
Sheila A. Bingham ◽  
Kay-tee Khaw
Keyword(s):  
Fruit And Vegetables ◽  
Fruit And Vegetable ◽  
Acid Base Balance ◽  
Acid Base ◽  
Urine Ph ◽  
Alkaline Urine ◽  
Base Balance ◽  
Dietary Acid ◽  
Base Load ◽  
Prospective Investigation

Evidence exists that a more acidic diet is detrimental to bone health. Although more precise methods exist for measurement of acid–base balance, urine pH reflects acid–base balance and is readily measurable but has not been related to habitual dietary intake in general populations. The present study investigated the relationship between urine pH and dietary acid–base load (potential renal acid load; PRAL) and its contributory food groups (fruit and vegetables, meats, cereal and dairy foods). There were 22 034 men and women aged 39–78 years living in Norfolk (UK) with casual urine samples and dietary intakes from the European Prospective Investigation into Cancer and Nutrition (EPIC)-Norfolk FFQ. A sub-study (n 363) compared pH in casual samples and 24 h urine and intakes from a 7 d diary and the FFQ. A more alkaline diet (low PRAL), high fruit and vegetable intake and lower consumption of meat was significantly associated with a more alkaline urine pH before and after adjustment for age, BMI, physical activity and smoking habit and also after excluding for urinary protein, glucose, ketones, diagnosed high blood pressure and diuretic medication. In the sub-study the strongest relationship was found between the 24 h urine and the 7 d diary. In conclusion, a more alkaline diet, higher fruit and vegetable and lower meat intake were related to more alkaline urine with a magnitude similar to intervention studies. As urine pH relates to dietary acid–base load its use to monitor change in consumption of fruit and vegetables, in individuals, warrants further investigation.

scholarly journals Associations between Dietary Acid Load and Biomarkers of Inflammation and Hyperglycemia in Breast Cancer Survivors

Nutrients ◽  
2019 ◽  
Vol 11 (8) ◽  
pp. 1913 ◽  
Author(s):  
Tianying Wu ◽  
Phoebe Seaver ◽  
Hector Lemus ◽  
Kathryn Hollenbach ◽  
Emily Wang ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Metabolic Acidosis ◽  
Cancer Survivors ◽  
Breast Cancer Survivors ◽  
Acid Base Balance ◽  
Acid Base ◽  
Dietary Acid Load ◽  
Base Balance ◽  
Dietary Acid ◽  
Acid Load

Metabolic acidosis can lead to inflammation, tissue damage, and cancer metastasis. Dietary acid load contributes to metabolic acidosis if endogenous acid–base balance is not properly regulated. Breast cancer survivors have reduced capacities to adjust their acid–base balance; yet, the associations between dietary acid load and inflammation and hyperglycemia have not been examined among them. We analyzed data collected from 3042 breast cancer survivors enrolled in the Women’s Healthy Eating and Living (WHEL) Study who had provided detailed dietary intakes and measurements of plasma C-reactive protein (CRP) and hemoglobin A1c (HbA1c). Using a cross-sectional design, we found positive associations between dietary acid load and plasma CRP and HbA1c. In the multivariable-adjusted models, compared to women with the lowest quartile, the intakes of dietary acid load among women with the highest quartile showed 30–33% increases of CRP and 6–9% increases of HbA1c. Our study is the first to demonstrate positive associations between dietary acid load and CRP and HbA1c in breast cancer survivors. Our study identifies a novel dietary factor that may lead to inflammation and hyperglycemia, both of which are strong risk factors for breast cancer recurrence and comorbidities.

scholarly journals Erratum: Dietary acid–base balance and intake of bone-related nutrients in Cambridge teenagers

2004 ◽  
Vol 58 (11) ◽  
pp. 1558-1558 ◽  
Author(s):  
C J Prynne ◽  
F Ginty ◽  
A A Paul ◽  
C Bolton-Smith ◽  
S J Stear ◽  
...  
Keyword(s):  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid

scholarly journals Lithuanian Olympic Basketball Players’ Nutrition during the Training Mezzo-Cycles Designed for Strength Training

2018 ◽  
Vol 3 (90) ◽  
Author(s):  
Marius Baranauskas ◽  
Linas Tubelis ◽  
Rimantas Stukas ◽  
Edmundas Švedas ◽  
Laimutė Samsonienė ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Protein Intake ◽  
Negative Impact ◽  
Survey Method ◽  
Composition Analysis ◽  
Acid Base Balance ◽  
Acid Base ◽  
Basketball Players ◽  
Base Balance ◽  
Dietary Acid

Research  background  and  hypothesis.  Unbalanced  nutritional  status,  incorrect  qualitative  and  quantitative content of nutritional and bioactive substances (nutrition value) for athletes in strength and speed sports can have a negative impact on acid-base homeostasis and physical working performance. Hypothesis – there is a dietary acid-base balance in the Lithuanian Olympic basketball team players’ food rations. Research aim was to assess dietary acid-base balance in Lithuanian high-performance basketball players during the training mezzo-cycles designed for strength training.Research methods. In the general preparation period, Lithuanian Olympic Team basketball players (n = 52), aged 18.0 ± 1.9 years, training 197.9 ± 58.7 min a day, 6 days a week on average, were tested. Body composition  analysis  of  athletes  was  performed  using  bioelectrical  impedance  analysis  (BIA)  method. Applying  the  survey  method we investigated and assessed the nutritional status of basketball players, possible effect of their dietary intake  on potential renal acid load (PRAL) and net endogenous acid production (NEAP).Research results. The dietary PRAL of more than half (67.3%) of subjects was positive (8.5 ± 49.0 mEq/day). Basketball players’ protein intake was positively related to dietary PRAL (r = 0.408, p = 0.003). Protein intake of 20.5% of male basketball players on average was 2.6 ± 0.7 g/kg body weight, and their dietary PRAL was 75.5 ± 22.8 mEq/day, NEAP – 128.5 ± 23.7 mEq/day. Discussion and conclusions. If high-protein diet (protein intake meets 1.8–2.0 g/kg BW) is followed, basketball players’ nutritional habits should be changed. Athletes are recommended to consume significantly more fresh fruits and vegetables and/or enrich the normal diet by sodium bicarbonate and/or beta-alanine dietary supplements.Keywords: basketball, acid-base balance, renal acid overload.

scholarly journals U-Shaped Association between Dietary Acid Load and Risk of Osteoporotic Fractures in 2 Populations at High Cardiovascular Risk

2020 ◽  
Vol 151 (1) ◽  
pp. 152-161
Author(s):  
Jesús Francisco García-Gavilán ◽  
Alfredo Martínez ◽  
Jadwiga Konieczna ◽  
Rafael Mico-Perez ◽  
Ana García-Arellano ◽  
...  
Keyword(s):  
Cardiovascular Risk ◽  
Osteoporotic Fractures ◽  
Heart Association ◽  
Acid Base Balance ◽  
High Cardiovascular Risk ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid ◽  
Acid Load ◽  
Predimed Study

ABSTRACT Background Bone contributes to maintaining the acid-base balance as a buffering system for blood pH. Diet composition also affects acid-base balance. Several studies have linked an imbalance in the acid-base system to changes in the density and structure of bone mass, although some prospective studies and meta-analyses suggest that acid load has no deleterious effect on bone. Objective The aim of this study was to examine the associations between potential renal acid load (PRAL) and net endogenous acid production (NEAP) and the risk of osteoporotic fractures and bone mineral density (BMD) in 2 middle-aged and elderly Mediterranean populations. Methods We conducted a longitudinal analysis including 870 participants from the PREvención con DIeta MEDiterranea (PREDIMED) Study and a cross-sectional analysis including 1134 participants from the PREDIMED-Plus study. Participants were adults, aged 55–80 y, either at high cardiovascular risk (PREDIMED) or overweight/obese with metabolic syndrome (PREDIMED-Plus), as defined by the International Diabetes Federation, the American Heart Association, and the National Heart Association. PRAL and NEAP were calculated from validated food-frequency questionnaires. BMD was measured using DXA scans. Fracture information was obtained from medical records. The association between mean PRAL and NEAP and fracture risk was assessed using multivariable-adjusted Cox models. BMD differences between tertiles of baseline PRAL and NEAP were evaluated by means of ANCOVA. Results A total 114 new fracture events were documented in the PREDIMED study after a mean of 5.2 y of intervention and 8.9 y of total follow-up. Participants in the first and third PRAL and NEAP tertiles had a higher risk of osteoporotic fracture compared with the second tertile, showing a characteristically U-shaped association [HR (95% CI): 1.73 (1.03, 2.91) in tertile 1 and 1.91 (1.14, 3.19) in tertile 3 for PRAL, and 1.83 (1.08, 3.09) in tertile 1 and 1.87 (1.10, 3.17) in tertile 3 for NEAP]. Compared with the participants in tertile 1, the participants in the top PRAL and NEAP tertiles had lower BMD [PRAL: mean total femur BMD: 1.029 ± 0.007 and 1.007 ± 0.007 g/cm2; P = 0.006 (tertiles 1 and 3); NEAP: mean total femur BMD: 1.032 ± 0.007 and 1.009 ± 0.007 g/cm2; P = 0.017 (tertiles 1 and 3)]. Conclusions The results of our study suggest that both high and low dietary acid are associated with a higher risk of osteoporotic fractures, although only high dietary acid was found to have a negative relation to BMD in senior adults with existing chronic health conditions. This trial was registered at http://www.isrctn.com/ as ISRCTN3573963 (PREDIMED) and ISRCTN89898870 (PREDIMED-Plus).

26. Dietary acid-base balance and bone metabolism

Bone ◽  
1991 ◽  
Vol 12 (4) ◽  
pp. 296-296
Author(s):  
H.Abu Damir ◽  
W. Buchan ◽  
J. Milne ◽  
N. Loveridge ◽  
D. Scott
Keyword(s):  
Bone Metabolism ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid

scholarly journals Dietary Acid-Base Balance in High-Performance Athletes

2020 ◽  
Vol 17 (15) ◽  
pp. 5332 ◽  
Author(s):  
Marius Baranauskas ◽  
Valerija Jablonskienė ◽  
Jonas Algis Abaravičius ◽  
Laimutė Samsonienė ◽  
Rimantas Stukas
Keyword(s):  
Body Weight ◽  
Muscle Mass ◽  
High Performance ◽  
Bioelectrical Impedance ◽  
The Body ◽  
Survey Method ◽  
Acid Base Balance ◽  
Acid Base ◽  
Base Balance ◽  
Dietary Acid

Physical exercise leads to metabolic changes that affect the acid-base balance in skeletal muscles and other tissues. Nutrition is one of the factors that may influence the acid-base balance in the body. Keeping alkaline circumstances in the body is important not only for health and athletic performance in training but also during competition in many sport events. This is especially significant for athletes who practice in sport at the highest level of competition. The aim of the study was to determine the dietary acid-base balance in competitive Lithuanian high-performance athletes, and to evaluate the effect of actual diets of athletes on NEAP (net endogenous acid production), muscle mass and body mineral content during a four-year Olympic cycle. The research participants were 18.1 ± 3.3-year-old Lithuanian high performance athletes (n = 323). The actual diet was investigated using the 24 h recall dietary survey method. The measurements of body composition were performed using BIA (bioelectrical impedance analysis). The potential renal acid load of the diets of athletes (dietary PRAL) and NEAP were calculated. In 10.2% of athletes, NEAP exceeds 100 mEq · day−1 and is on average 126.1 ± 32.7 mEq · day−1. Higher NEAP in athletes is associated with lower muscle mass (β -1.2% of body weight, p < 0.001) but has no effect on the amount of minerals in the body (β 0.01% of body weight, p = 0.073). Overall, 25–30% of Lithuanian high-performance athletes use high-protein diets (2.0–4.8 g · kg−1 · day−1) leading to a dietary acid-base imbalance as well as an excessive production of endogenous acids in the body. Athletes are recommended to consume higher amounts of potassium and magnesium. An increase in calcium intake up to 1500 mg per day is recommended. In exceptional cases, periodised nutrition for athletes may involve diets complemented with bicarbonate and/or beta-alanine supplements.

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