The small intestine | Guts: The Strange and Wonderful World of the Human Stomach
A camera travels through the digestive system and shows the frenzy of digestion within the small intestine.
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This episode looks at kale and whether it could help eye health, finds out if grapefruit can help weight loss, and if xylitol can be good for our teeth.
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Kate Quilton investigates the grapefruit diet and whether grapefruit really can burn fat.