Recommended intake for adults, in milligrams per day (recommended calcium allowances based on North American and western European data):
- Adolescents, 10–18 years - 1300 mg / day
- Females, 19 years to menopause - 1000 mg / day
- Females, pregnant women (last trimester) - 1200 mg / day
- Females, lactating women - 1000 mg / day
- Females, postmenopause - 1300 mg / day
- Males, 19–65 years - 1000 mg / day
- Males, 65+ years - 1300 mg / day
The calcium requirement of an adult is generally recognized to be the intake required to maintain calcium balance and therefore skeletal integrity.
Calcium balance is determined by the relationship between calcium intake and calcium absorption and excretion. Relatively small changes in calcium absorption and excretion can neutralize a high intake or compensate for a low one.
A positive calcium balance (net calcium retention) is required throughout growth, particularly during the first 2 years of life and during puberty and adolescence. These age groups therefore constitute populations at risk for calcium deficiency, as do pregnant women (especially in the last trimester), lactating women, postmenopausal women, and, possibly, elderly men.
A sharp distinction between humans and “animals” is essential if we are to bend them to our will, make them work for us, wear them, eat them–without any disquieting tinges of guilt or regret. It is unseemly of us, who often behave so unfeeling toward other animals, to contend that only humans can suffer. The behavior of other animals renders such pretensions specious. They are just too much like us.
Choline is an essential vitamin-like (vitamin B4) nutrient, synthesized in human body, but not sufficiently.
The recommended adequate intake (AI) of choline is set at 425 milligrams (mg)/day for women and 550 mg/day for men.
Choline deficiency causes muscle damage and abnormal deposition of fat in the liver, which results in a condition called nonalcoholic fatty liver disease. Genetic predispositions and gender can influence individual variation in choline requirements.
Example Plant Fruitarian Sources of Choline
Seeds (including legumes and nuts), high in choline, milligrams per 100 g portion:
- Soybeans - 124 mg
- Lima beans - 97 mg
- Lentils - 96 mg
- Peas (mature) - 96 mg
- Flaxseeds - 79 mg
- Pistachio nuts - 71 mg
- Quinoa - 70 mg
- Pumpkin and squash seed kernels (pepitas) - 63 mg
- Cashew nuts - 61 mg
- Pine nuts - 56 mg
- Sunflower seed kernels - 55 mg
- Buckwheat - 54 mg
- Almonds - 52 mg
Fruits, high in choline, milligrams per 100 g portion:
- Tomatoes, sun-dried - 105 mg
- Apples - 18 mg
- Figs - 16 mg
- Avocados - 14 mg