Table 1.

Animal studies about the possible effect of functional foods and bioactive compounds on body weight control, obesity, and its metabolic consequences

Study Type (Animals Used)	Number and Characteristics of Animals	Functional Food/Dose/Duration	Summary of Key Results	Study Reference
Rats	n = 10 Male rats per 4 groups with obesity	Green tea 100 mg capsules or powder (catechins) 30 days	Reduced body weight gain	Pan et al. 2016 [15]
Rats	n = 35 male rats with high cholesterol, body weight, blood glucose, serum lipids	Avocado 2 g avocado pulp 7 weeks	Increased cholesterol Reduced body weight Reduced blood glucose Reduced BMI Reduced serum lipids	Gupta et al. 2015 [17]
Rats	n = 40 male rats with metabolic syndrome, cardiovascular, and hepatic structure	Green coffee 68.3 mg/kg caffeine 8–9 weeks	Increased cardiovascular diseases	Pauchal et al. 2012 [14]
Rats	n = 80 rats (2 groups) with chronic diseases	Berries 500 mg powder (anthocyanins) 7 weeks	Reduced chronic diseases	Nohara et al. 2018 [19]
Mice acute	n = 8–9 per group	149 g powdered berry Colitis and T cell tumournecrosis, factor-α secretion	Inhibited colitis in mice and T cell tumor necrosis factor-α secretion	Martin et al. 2018 [20]
Rats	n = 40 male rats per 5 groups with diabetes mellitus	Nuts (walnuts) 85.2 g 2 weeks	Reduced blood glucose levels	Onwuli, et al. 2014 [21]
Rats	n = 8 male rats per 5 groups with Type 2 diabetes mellitus, increased blood pressure	Olive (oleuropein) 20–60 mg/day powder RCT 4 weeks, acute	Increased blood pressure, glucose	Nekooeian et al. 2014 [16]
Dogs	n = 6 dogs with gut health	Pomegranate 50 mg powder	Positive impact on gut health	Jose et al. 2017 [22]
Rats	5 groups	Ginger 500 mg/kg, 30 days Type 1 Diabetes mellitus	Increased liver weight Decreased of plasma glucose levels	Abdulrazaq et al. 2011 [18]