Do dietary supplements influence metabolism?

From the available evidence, it appears that commercially available dietary supplements advertised to stimulate metabolism have the propensity to increase metabolic rate. Everything from sleep to exercise to nutrition will affect metabolic rates. Food is the largest source of energy for humans. Supplements such as iron and acetyl-L-carnitine can improve nutrition and increase metabolism.

Patients should talk to a healthcare provider or pharmacist for recommendations on supplements. Some companies sell products that supposedly stimulate metabolism. Most claim that they do so through a process called thermogenesis or increased heat production. This process stimulates energy use and can boost metabolism and help burn calories.

Some vitamins and minerals can help metabolism work effectively. While supplements can help, whole foods are the best source of vitamins and minerals. The purpose of this study was to examine the effects of a multi-ingredient thermogenic supplement on RMR and hemodynamic function in healthy women. The “feeling of more energy” from energy-boosting supplements comes from the high amount of added sugars, caffeine, and other herbal stimulants that accompany the high doses of B vitamins.

In the second case, the dietary supplement contains a constituent that is not normally required by the cell, but this substance is capable of disrupting normal cell function. Acute effects of a thermogenic nutritional supplement on energy expenditure and cardiovascular function at rest, during low-intensity exercise and exercise recovery. A significant proportion of people over 60 do not have enough stomach acid to achieve this and require more foods containing vitamin B-12 or a free vitamin supplement (. The Effects of a Single-Dose Thermogenic Supplement on Resting Metabolic Rate and Hemodynamic Variables in Healthy Women: A Randomized, Double-Blind, Placebo-Controlled Crossover Trial.

Thermogenic supplements are marketed to the general public to improve fat loss through increased energy expenditure. A supplement only has benefits when the normal intake of a bioavailable form of a nutrient is less than the amount that would provide the maximum benefit as judged from all biological perspectives. In addition, thermogenic supplements containing caffeine, garcinia cambogia and chromium polynicotinate have also been shown to increase caloric expenditure. Incremental area under the curve (AUC) was calculated for each treatment (thermogenic supplement and placebo) using the trapezoidal method described by Brouns et al.

Treatment with thermogenic dietary supplement and placebo were ingested as capsules, and two capsules were taken per dose. Future work should investigate the effectiveness and safety of ingesting the dietary supplement over a longer period of time (several months) to determine whether reductions in fat mass are observed. There is some concern that stimulant-based thermogenic supplements may adversely affect hemodynamic variables, such as heart rate (HR) and blood pressure (BP). If life gets too busy or a little extra boost is needed, supplements are a great place to start.

If participants were randomly assigned to take the thermogenic dietary supplement in the first trial session, they would ingest the alternative treatment (placebo) in the second and final test session. If taken daily, thermogenic dietary supplements can increase overall energy expenditure, which can lead to a reduction in fat mass over time. .

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