A cereal bran such as psyllium seed husk , or a synthetic fiber such as methylcellulose is often used in this case .
Nevertheless , a fibre supplement may be needed to prevent constipation when food intake is low , which is the case among inactive elderly .
A cereal bran such as psyllium seed husk , or a synthetic fiber such as methylcellulose is often used in this case .
Nevertheless , a fibre supplement may be needed to prevent constipation when food intake is low , which is the case among inactive elderly .