Apples, raw, with skin

Maximum Daily Intake

Energy

The Estimated Average Requirement for Energy (a prescribed amount to maintain a healthy body weight) for a female age: 25-34 is 2175 kcal ^{1 (p.83-85)}

Sugar

The World Health Organisation (W.H.O.) recommends that the maximum proportion of energy from all sugars (intrinsic and added) is: 5% and a strong recommendation of an absolute maximum of 10%

The energy value of a gram of Sugar is 3.8 kcal.¹ (p.93)

W.H.O. Recommended maximum sugar intake for age: 25-34 and sex:female is
5% x 2175 / 3.8 = 28.6g of Sugar per day
7.2 cubes .

and the Absolute maximum is 57.2g of Sugar per day.

Nb. The W.H.O² recommendations for maximum sugar intake are considerably lower than those of the NHS³.

Salt and Sodium

"Most salt in the diet does not come from addition to food in the home by consumers but from processed foods. This makes it extremely difficult for individuals to reduce their own salt intake and to maintain a reduced intake over any length of time."Scientific Advisory Committee on Nutrition⁴
"6g is higher than the Reference Nutrient Intake (RNI) and substantially greater than the salt intake required to maintain the sodium content of the body"⁴
Reference Nutrient Intake / required for age:15+ is 4g salt (1.6g Sodium). Daily target average is 6g salt

Sources

1. The 2011 report by the UK Scientific Advisory Committee on Nutrition on Dietary Reference Values for Energy, available here
2. The World Health Organisation Guideline for sugar intake in adults and children 2015. available here
3. NHS Recommendations on Sugar Intake
4. SACN report on Salt and Health 2003 (p2)

Other Sources

• UK Food Standards Agency, Nutrient and food based guidelines for UK institutions, 2007
• Food Retailers and Manufacturers - on Guideline Daily Amounts
• Sugar Industry Report on Sugars, 2010