Online lecture by Roland Bitsch on 28 Nov 2023, 3 pm

Moderation: Eberhard Ehlers

The focus of the topic is the importance of the human water balance. The physiological function of water, distribution to the tissues, guideline values for water and fluid intake and the water balance are explained. The consequences of water loss and dehydration are also addressed. Drinking recommendations for increased physical exertion are discussed in more detail.

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Online lecture by Roland Bitsch on 24 May 2022, 3 pm

Moderation: Klaus-Dieter Jany

A total of 13 different vitamins are known, 4 lipid-soluble and 9 water-soluble, each with specific target functions in the metabolism. Uniform biosynthesis pathways only result for lipid-soluble vitamins with acetyl-coenzyme A as the starting point. Different storage capacities of the organism are important for the level of requirement coverage or recognition of vitamin deficiency stages. The limited stability against external influences can sometimes lead to considerable losses during food preparation.

Recommendations on the level of intake to cover requirements in the context of consumption studies can be validated by biochemical functional parameters. In contrast to water-soluble vitamins, very high supplementation can lead to intoxication, particularly in the case of lipophilic vitamins A and D can lead to intoxication, but not in the context of a normal diet.

Preventive aspects of diseases are related to the physiological function of this nutrient group, such as the prophylaxis of osteoporosis by vitamins D and K and the prophylaxis of neural tube damage by folic acid.

Vitamins D, folic acid and B12 are critical vitamins with inadequate intakes in local population groups. The problem of insufficient intake of individual vitamins is discussed on the basis of risk groups such as pregnant and breastfeeding women, people with extreme or unbalanced dietary habits, gastrointestinal absorption disorders and senior citizens.

Did you enjoy the lecture? Or are you unable to attend the lecture? Then write to Mr Prof Bitsch he will be happy to provide you with the slides of his lecture.