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							| Functional Foods in Health and Disease - Online ISSN: 2160-3855; Print ISSN: 2378-7007



	

				
						
 
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																Functional Foods in Health and Disease - Online ISSN: 2160-3855; Print ISSN: 2378-7007
										

				


				
				
					
					
						
																					
				
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					Vol. 1 No. 12 (2011): December 2011
				
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									Research Articles
							
		



	
		  	 

		
	
		A combination of various functional food ingredients as a weight management program: randomized, placebo-controlled, and double-blind human clinical studies
	


	
	
		

							
					Authors

						
							
								Harunobu Amagase
							
															
									FreeLife International, Inc., Phoenix, AZ
																	
																																		


				
			
																	
					
												DOI:
					

					
						
							https://doi.org/10.31989/ffhd.v1i12.106
						
					
				
			

						
										
					Abstract

					Background: Lycium barbarum increased the postprandial energy expenditure (PPEE). Negative energy balance caused by the systematic procedure (TAIslim® System), including increasing metabolic rate through physical activity, use of Lycium barbarum-containing TAIslim (Product A), and decreasing caloric intake by consuming a chewable confection (TAIslim SKINNY=Product B), and a meal replacement shake (TAIslim SHAKE=Product C), would be successful for weight loss.
Methods: We examined TAIslim System on anthropometrics, appetite in Study 1 and PPEE in Study 2, both in a randomized, placebo-controlled, double-blind manner. 1) A total of 67 participants were randomized into 2 groups (placebo or TAIslim System). Intake procedures were: Product A, 60 ml (20 kcal) b.i.d. immediately before breakfast and lunch, Product B, 1 chew (20 kcal) t.i.d. between meals and after dinner; Product C, 40.5 g (158 kcal) as breakfast. A calorie-restricted diet with multi-vitamin supplementation and daily exercise was required. Anthropometric parameters were assessed at baseline, 4, 8, and 12 w. 2) Appetite was measured using a subjective visual analog scale during the initial 3-7 days of intake. 3) For PPEE evaluation, 12 participants consumed a single bout of TAIslim System products or placebo, and took part in 6 study sessions. EE was measured by an indirect calorimeter immediately before (baseline) and at 1, 2, and 4 h post-intake of samples.
Results: 1) Body weight was significantly reduced by 6.2±0.7%, compared to pre-intervention with TAIslim System (P<0.01). Waist circumference, total body fat, blood pressure, and fasting blood glucose levels were also significantly reduced by TAIslim System, in a range of 3.8-9.9%. TAIslim System was significantly more effective than the placebo (P<0.05). The placebo group showed -0.1-3.9% reduction from pre-intervention with no significant difference. 2) TAIslim System also significantly suppressed appetite, by 39%, compared to the baseline and placebo (P<0.05) (11% reduction in the placebo). 3) PPEE was significantly increased by TAIslim System compared to placebo and baseline levels. Compared to the baseline EE, placebo increased only by 0.8±0.9%, but 7.2±1.2 % with TAIslim System (P<0.01).
Conclusions: It is suggested that TAIslim System exhibits significant weight loss and stimulating effects on caloric expenditure, and thus may be a useful and effective weight loss program.
Keywords: Lycium barbarum, Goji, Fiber, Phenylalanine, N-Acetyl-L-Tyrosine, Tea, Polyphenols, Human clinical trial, Energy expenditure, Resting metabolic rate, Waist circumference, Appetite, Body mass index, TAIslim.

				
			
			

						
																			
						
		


		

						
										
					
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																			2011-12-30
																	

				
							

			
						
										

											
							
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									Vol. 1 No. 12 (2011): December 2011
								
							

						
					
											
							
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								Research Articles
							

						
					
									

			
						
										
					
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