The science of nutrition and healthy eating
The science of nutrition and healthy eating

This free course is available to start right now. Review the full course description and key learning outcomes and create an account and enrol if you want a free statement of participation.

Free course

The science of nutrition and healthy eating

3 How much food do we need?

Have you ever thought that most people go through life without ever knowing how much of the various sorts of nutrients, including vitamins and minerals, they actually need? And yet they manage to obtain just the right amount of nutrients to stay healthy.

The human body has an amazing ability to keep the nutrients it needs and dispose of those it does not. As long as we eat a reasonably mixed diet, most people need not worry about precisely how much of the various nutrients they take in. However, today, with tempting foods everywhere in developed countries, the main concern is that we take in too much of some of the dietary components, rather than not enough.

SNHE_1

Take your learning further

Making the decision to study can be a big step, which is why you'll want a trusted University. The Open University has 50 years’ experience delivering flexible learning and 170,000 students are studying with us right now. Take a look at all Open University courses.

If you are new to university level study, find out more about the types of qualifications we offer, including our entry level Access courses and Certificates.

Not ready for University study then browse over 900 free courses on OpenLearn and sign up to our newsletter to hear about new free courses as they are released.

Every year, thousands of students decide to study with The Open University. With over 120 qualifications, we’ve got the right course for you.

Request an Open University prospectus