Suplementos de Cálcio?

... e cancro?
https://www.independent.co.uk/life-style/calcium-supplement-cancer-risk-death-study-health-a8861041.html

Citando:
"Writing in the journal Annals of Internal Medicine, the scientists said people could be putting themselves at risk by taking calcium supplement doses higher than 1,000 milligrams per day."
(...)
"In addition, there was evidence that unnecessary consumption of vitamin D supplements by individuals who were not deficient in the vitamin - which helps regulate the amount of calcium and phosphate in the body - might increase the risk of death from any cause."

Fontes de proteína, cálcio e ferro em plantas

Proteína (requer Facebook):
https://scontent.fopo2-1.fna.fbcdn.net/v/t31.0-8/fr/cp0/e15/q65/14434846_983501168444088_8902943784250547593_o.jpg

Cálcio:
https://scontent.fopo2-1.fna.fbcdn.net/v/t31.0-8/fr/cp0/e15/q65/18209157_1207103879417148_1806262983753331597_o.jpg

Source (inclui imagem para ferro também):
https://www.simplehappykitchen.com

6 factores de risco para o cancro da próstata

https://www.express.co.uk/life-style/health/924382/cancer-symptoms-prostate-signs-causes

Citando:
"[Factors] include:

Age - risk rises as you get older and most cases are diagnosed in men over 50 years of age.

Ethnic group – prostate cancer is more common among men of African-Caribbean and African descent than in men of Asian descent.

Family history – having a brother or father who developed prostate cancer under the age of 60 seems to increase the risk of you developing it. Research also shows that having a close female relative who developed breast cancer may also increase your risk of developing prostate cancer.

Obesity – recent research suggests that there may be a link between obesity and prostate cancer.

Exercise – men who regularly exercise have also been found to be at lower risk of developing prostate cancer.

Diet – research is ongoing into the links between diet and prostate cancer. There is evidence that a diet high in calcium is linked to an increased risk of developing prostate cancer."

Sal e hipertensão nem por isso?

Estudo questiona que sal provoca tensão alta:
http://www.dailymail.co.uk/health/article-4443612/Low-salt-diets-not-lower-blood-pressure.html

Citando:
"Researchers followed more than 2,600 men and women over a period of 16 years
They discovered that consuming less salt wasn't linked to lower blood pressure
New findings call into question salt limits recommended by dietary guidelines

Cutting salt from your diet may not be the answer to lower blood pressure, a study has found.

The NHS advice is for adults to eat no more than six grams of salt a day – the equivalent of 2.4 grams of sodium.

But a study by Boston University found people consuming less salt than this actually had higher blood pressure, prompting a call for the guidance to be changed.

Researchers say the advice to eat less salt is too simple and ignores the fact that salt can raise hormone levels in the body which regulate and keep blood pressure low.
(...)
While many people with heart disease who cut salty, processed food out of their diet do see their blood pressure fall, these tend to be 'salt-sensitive' people, which may be why they have bad hearts to begin with.

Salt can cut blood pressure in some people, but the experts say potassium, found in bananas and potatoes, can help tip the balance too, along with magnesium and calcium. 

Levels of these could explain why some people who consumed more than six grams of salt had lower blood pressure."

Leite e derivados (estudo)

Estudo que refere cuidados a ter a quem cortou (sem ser por conselho médico) o consumo de leite e derivados e avisos a adolescentes (pode ter consequências ao nível dos ossos e dentes):
http://m.huffpost.com/us/entry/us_58ef884ce4b0b9e98489e73d

E um sítio dedicado à saúde dos ossos:
https://staging.nos.org.uk/my-younger-self/

Citando (HP):
"Dairy-based items like yogurt, milk and cheese are typically the easiest way for children and young adults to get their recommended amounts of calcium and Vitamin D. These vital nutrients help with bone growth and tooth health. The nutrients in dairy also help with cholesterol and blood pressure in adulthood.

Adolescents in the U.S., defined as age 9 to 18, should get approximately 1,300 milligrams of calcium per day, according to the National Institute of Health. The recommended goal is about three servings of dairy daily.

There are plenty of perfectly sound reasons for giving up dairy products, as a lifestyle choice or for physical health. It just means you’ll have to be mindful of incorporating other calcium-rich foods into your diet, such as broccoli and kale or fortified options like tofu and cereal.

Another striking finding from the survey? How young people are making dietary choices. Those under the age of 25 were the most likely to follow health and fitness bloggers on social media, suggesting they may get their nutrition information from these sources."

Skyr, um novo tipo de iogurte?

O Sykr é um tipo de iogurte alternativo que já se encontra à venda em Portugal (e.g. no Lidl) e tem cerca de 11g de proteína por cada 100g. Por comparação, o iogurte natural mais corrente tem carca de 3-4g de proteínas por cada 100g e a aveia tem cerca de 12g de proteína por cada 100g:

De realçar: Baixo teor de gordura, alto nível de proteínas e de cálcio; bactérias Streptococcus thermophilus e Lactobacillus bulgaricus (benéficas para os intestinos).

Mais info:
Skyr: há um novo iogurte a revolucionar o mundo fit (e a receita é dos vikings)

PS: "Kudos to M. Oliveira for the tip"

Sobre os pontos brancos nas unhas...

http://www.mirror.co.uk/science/you-sometimes-little-white-spots-9860481
Citando:
"But, generally, you can rest assured that white dots – known scientifically as punctate leukonychia – on your nails are nothing sinister. Typically, they appear simply because there's been some trauma to the nail."
(...)
"Puncate might not mean a lack of calcium, but could suggest a zinc deficiency. Eating foods such as spinach, kidney beans, beef, and seeds is a good way to combat this."