Energy calculation using physiological fuel values (Atwater factors):
Carbohydrates: $170\text{ g} \times 4\text{ kcal/g} = 680\text{ kcal}$
Proteins: $40\text{ g} \times 4\text{ kcal/g} = 160\text{ kcal}$
Fats: $30\text{ g} \times 9\text{ kcal/g} = 270\text{ kcal}$

The 'e-dabbawala' service integrates web-based ordering, digital routing, and ICT platforms into the traditional lunchbox delivery system, serving as an iconic example of IT adoption in institutional food service and catering.

A low-residue diet limits dietary fiber and other undigested materials that contribute to stool volume. Raw fruits, raw vegetables, whole grains, nuts, and seeds are rich in dietary fiber and are strictly restricted to rest the bowel in inflammatory bowel disease (Crohn's, ulcerative colitis) or before bowel surgery.

Golden Rice was genetically engineered by Ingo Potrykus and Peter Beyer to biosynthesize beta-carotene (provitamin A) in the edible endosperm of the rice grain by introducing two genes: phytoene synthase (psy from daffodil/maize) and phytoene desaturase (crtI from soil bacterium Pantoea ananatis). In the human body, beta-carotene is cleaved into active vitamin A (retinol) to combat childhood blindness.

Celiac disease (gluten-sensitive enteropathy) is an autoimmune disorder triggered by ingestion of gluten, a storage protein composite found in wheat, rye, barley, and related grains. Gluten damages the intestinal villi, causing malabsorption; hence, a strict lifelong gluten-free diet omitting wheat, barley, rye, and contaminated oats is mandatory.