Digestion Time of Various Foods

Posted by xaminmo

I am still looking for the raw source of this information, or the methods used to obtain it.

It matches my observations, but without scientific backing, this must be considered anecdotal at best.

Date: 2004/02/09, 01:55 PM
Source: https://www.freetrainers.com/forums/topic/eating-before-workout-17839/
Author: https://www.freetrainers.com/community/p/bb1fit/

DIGESTION TIME OF VARIOUS FOODS

  • approx. time spent in stomach before emptying

Water

  • When stomach is empty, leaves immediately and goes into intestines

Juices

  • Fruit vegetables, vegetable broth – 15 to 20 minutes.

Semi-liquid

  • Blended salad, vegetables or fruits – 20 to 30 min.

Fruits

  • Watermelon – 20 min.
  • Other melons – Canteloupe, Cranshaw, Honeydew etc. – 30 min.
  • Oranges, grapefruit, grapes – 30 min.
  • Apples, pears, peaches, cherries etc. – 40 min.

Vegetables

  • Raw tossed salad vegetables – tomato, lettuces, cucumber, celery, red or green pepper, other succulent vegetables – 30 to 40 min.

Steamed or cooked vegetables

  • Leafy vegetables – escarole, spinach, kale, collards etc. – 40 min.
  • Zucchini, broccoli, cauliflower, string beans, yellow squash, corn on cob – 45 min.
  • Root vegetables – carrots, beets, parsnips, turnips etc. – 50 min.

Semi-Concentrated Carbohydrates – Starches

  • Jerusalem artichokes & leafy, acorn & butternut squashes, corn, potatoes, sweet potatoes, yam, chestnuts – 60 min.

Concentrated Carbohydrates – Grains

  • Brown rice, millet, buckwheat, cornmeal, oats (first 3 vegetables best) – 90 min.

Legumes & Beans – (Concentrated Carbohydrate & Protein)

  • Lentils, limas, chick peas, peas, pigeon peas, kidney beans, etc. – 90 min.
  • soy beans -120 min.

Seeds & Nuts

  • Seeds – Sunflower, pumpkin, pepita, sesame – approx. 2 hours.
  • Nuts – Almonds, filberts, peanuts (raw), cashews, brazil, walnuts, pecans etc. – 2.5 to 3 hours

Dairy

  • Skim milk, cottage or low fat pot cheese or ricotta – approx. 90 min.
  • whole milk cottage cheese – 120 min.
  • whole milk hard cheese – 4 to 5 hours

Animal proteins

  • Egg yolk – 30 min.
  • Whole egg – 45 min.
  • Fish – cod, scrod, flounder, sole seafood – 30 min.
  • Fish – salmon, salmon trout, herring, (more fatty fish) – 45 to 60 min.
  • Chicken (without skin) – 11/2 to 2 hours digestion time
  • Turkey (without skin) – 2 to 2 1/4 hours
  • Beef, lamb – 3 to 4 hours
  • Pork – 41/2 to 5 hours

END OF QUOTED ARTICLE

Info about gastric emptying rates:

  • http://www.vivo.colostate.edu/hbooks/pathphys/digestion/basics/transit.html
  • https://www.mayoclinic.org/digestive-system/expert-answers/faq-20058340
  • https://www.physiology.org/doi/10.1152/ajpgi.1989.257.2.G284

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